North Korea is marking the 70th anniversary of the ruling Workers’ Party with huge parades in capital Pyongyang.
It is expected to be one of North Korea’s biggest celebrations ever.
A cavalcade of armored vehicles and ballistic missiles rumbled through Pyongyang, accompanied by marching troops.
North Korea’s supreme leader Kim Jong-un presided over the ceremony, but no world leaders attended.
Kim Jong-un said that North Korea was ready to fight any war waged by the US.
The celebrations featured thousands of soldiers – many carrying red party flags or banners – in tight square formations goose-stepping to martial music.
Tanks rolled past the podium where Kim Jong-un spoke, with an aircraft flypast forming the number 70.
When it announced plans for the anniversary earlier this year, the government spoke of “cutting-edge” weaponry suitable for modern warfare, and the day’s event will be closely watched for any new military hardware indicating North Korea’s military development.
China, North Korea’s closest ally, sent a senior Communist Party official to the anniversary.
Kim Jong-un began the day by paying respects to his late father and grandfather at the Kumsusan Palace of the Sun in Pyongyang, official media reported.
Officials did not divulge details of the day’s celebrations, although thousands of Pyongyang citizens have been seen in public squares across the city practicing for a torchlight parade to be held in the evening.
A stage has also been set up on a river for a late-night concert featuring the all-female Moranbong Band – North Korea’s most popular musical group.