Southern and eastern German cities are on high alert as heavy floodwaters swell rivers including the Elbe.
In Halle, an appeal has gone out to residents to help reinforce flood defenses while Dresden is preparing for water levels 5 m higher than normal.
German Chancellor Angela Merkel has promised 100 million euros ($130 million) in emergency aid for flood-hit areas.
Meanwhile, river levels in Prague have begun to fall, say the Czech authorities, as floodwaters move north.
Overnight, flood barriers on the River Vltava in the south of the country were raised, releasing a torrent of water.
However, Prague’s flood defenses appear to have held, and the risk of severe flooding in the city centre seems to be receding.
The city of Regensburg has declared a state of emergency, while in the state of Saxony – which includes Dresden – officials were warning of higher water levels than during the record floods of 2002.
The bodies of two people, a man and a woman, were found separately around the southern town of Guenzburg. At least seven people have died in the Czech Republic and two in Austria after days of heavy rain.
Hungary has also declared a state of emergency. Floodwaters on the Danube are expected to peak there on Thursday.
Southern and eastern German cities are on high alert as heavy floodwaters swell rivers including the Elbe
Germany has drafted in the army to help with flood defences.
In the Bavarian town of Passau, floodwaters reached a level not seen since the 16th Century, but have now begun to recede.
Chancellor Angela Merkel visited the worst affected regions on Tuesday, flying over Bavaria, Saxony and Thuringia by helicopter.
She promised 100 million euros in immediate aid, of which 50 million euros will go to Bavaria.
In the Czech Republic, a nationwide state of emergency is still in force. Water levels are expected to peak in the north later on Tuesday.
Around 3,000 people have been forced to leave their homes across the west of the country.
As a precaution, Prague’s metro system and central sewage treatment plant were closed, metal flood defenses were erected and sandbags built up along the banks of the Vltava.
The Charles Bridge – normally packed with tourists – was shut and tigers at the city’s zoo were tranquilized and moved out of an enclosure thought to be at risk.
A system of nine dams called the Vltava Cascade was found to be dangerously full, and the floodgates were opened at 20:00 local time on Monday night.
North of Prague, further downstream, the River Elbe is rising to levels approaching those seen in 2002, the last time Europe experienced similar floods.
Seventeen people were killed in the Czech Republic in August 2002 and the cost of the damage across the continent was estimated at 20 billion euros ($26 billion).
Main roads in many areas of central Europe have been closed and rail services cut. Thousands of homes are without power.
In Austria, the meteorological service said two months of rain had fallen in just two days.
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Deadly flood waters continue to rise across central Europe and thousands of people have alredy fled their homes in the region.
Emergency operations are under way in Austria, Germany and the Czech Republic to cope with river levels which have reached record heights in some places.
Landslides and flooding have led to the deaths of at least seven people. More than eight others are missing.
The German army has been drafted in to help reinforce flood defenses in the south and east of the country.
In the Czech Republic, a nationwide state of emergency is in force. Around 3,000 people have been forced to leave their homes across the west of the country.
The authorities in the capital, Prague, are on high alert amid fears that the River Vltava could swamp its historic centre. On Monday morning, the river was flowing at 2,800 cubic metres per second – 10 times its normal volume.
Thousands of people flee their homes as central Europe flood waters rise
As a precaution the city’s metro system has been closed, metal flood defenses are being erected and sandbags built up along the banks of the Vltava.
No major evacuations are planned in Prague, but tigers at the city’s zoo have been tranquilized and moved out of an enclosure thought to be at risk of flooding.
“The story is not yet over here,” warned Environment Minister Tomas Chalupa.
Although the Vltava was expected to rise again on Tuesday morning, officials said it was unlikely to reach the levels seen in 2002, the last time Europe saw similar floods.
Seventeen people were killed in the Czech Republic and the cost of the damage across the continent was estimated at 20 billion euros ($26 billion).
The destruction so far seen in the capital has been relatively minor compared to elsewhere. In southern and western areas of the country, several towns and villages are under water.
Main roads in many areas of central Europe have been closed and rail services cut. Thousands of homes are without power.
Czech police said on Monday that at least five people were now known to have died due to the flooding. Two people died after their cottage collapsed on Sunday, and three people had died in separate incidents across Bohemia. Several people are missing.
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Hundreds of homes have been evacuated across southern Germany, the Czech Republic, Austria and Switzerland as rivers reach dangerously high levels.
The Czech capital Prague is on high alert as a swell of floodwater moves in from the south.
Both Germany and Austria are deploying their armies to help emergency services.
A man was killed by a landslide near Salzburg in Austria and two people have died in the Czech Republic.
The Czech government has declared a nationwide state of emergency.
The Czech deaths came after floodwaters destroyed flimsy country cottages. Two more people are missing in the country after their raft overturned on a swollen river.
Firemen in Czech Republic capital have been putting up metal flood barriers and volunteers filling sandbags as the River Vltava is due to reach peak levels in Prague some time on Monday morning.
Czech PM Petr Necas has called a special cabinet session to co-ordinate the emergency response.
Hundreds of homes have been evacuated across southern Germany, the Czech Republic, Austria and Switzerland as rivers reach dangerously high levels
Authorities believe the river in Prague will not reach the levels it did in 2002, when parts of the city were devastated, but will still be high enough to cause severe damage.
Bavaria’s flood alert service warns that the forecast of continuing heavy rain is likely to worsen the flooding affecting the Danube and the Inn, among other rivers in the area.
The German cities of Passau and Rosenheim have declared a state of emergency.
Authorities in Passau, which lies at the confluence of three rivers in Bavaria, say they expect the Danube to reach 10.5m by Sunday evening and have requested help from the German army.
Bavaria is not the only German state to be affected; towns and cities in Saxony, Thuringia and Baden-Wuerttemberg are also inundated.
The Munich-based newspaper Sueddeutsche Zeitung reports that the German army is to be deployed in Bavaria, Saxony and Thuringia to support the flood-affected areas.
German Chancellor Angela Merkel has discussed the floods in phone calls with the premiers of Bavaria and Saxony, the paper says.
Near the Austrian city of Salzburg a man was found dead after being swept away as he worked to clear a landslip.
Two further people are missing in the Salzburg area, according to Austrian media. A third is missing in Vorarlberg.
The Austrian army was called in to help civil authorities in the settlement of Taxenbach, south of Salzburg. Their main task was to clear landslides and make roads passable.
Parts of the Pinzgau region, which includes Taxenbach, have been declared a disaster zone.
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