The United States have strongly criticized Egypt’s Mohamed Morsi for anti-Semitic remarks he apparently made before being elected president.
TV footage shows Mohamed Morsi in 2010 referring to Zionists as “bloodsuckers” and “descendants of apes and pigs”.
US officials want the leader to clarify his “deeply offensive” comments, which they say run counter to Middle East peace efforts.
Egypt receives around $1.5 billion in annual US military and economic aid.
The financial support is linked to Egypt’s peace treaty with Israel, which the US considers a cornerstone of regional stability.
The controversy erupted after the Washington-based Middle East Media Research Institute (MEMRI) translated and released Arabic footage of interviews Mohamed Morsi gave in 2010, as a leader of the Muslim Brotherhood.
In the clip from Palestinian broadcaster Al-Quds TV, Mohamed Morsi referred to Jewish settlers as “occupiers of Palestine” and “warmongers”.
He called for a “military resistance in Palestine against these Zionist criminals assaulting the land of Palestine and Palestinian”.
Mohamed Morsi also denounced the Palestinian Authority, saying it was “created by the Zionists and American enemies for the sole purpose of opposing the will of the Palestinian people.”
The US have strongly criticized Egypt’s Mohamed Morsi for anti-Semitic remarks he apparently made before being elected president
In another interview, Mohamed Morsi urged Egyptians to “nurse our children and grandchildren on hatred”.
The US State Department said the comments should be repudiated.
“We completely reject these statements, as we do with any language that espouses religious hatred,” the department’s spokeswoman Victoria Nuland said.
“This kind of rhetoric has been used in this region for far too long. It’s counter to the goals of peace.”
The White House called the rhetoric “unacceptable in a democratic Egypt”.
“President Morsi should make clear that he respects people of all faiths,” spokesman Jay Carney told reporters.
However, both US officials also highlighted that Mohamed Morsi had shown his commitment to regional peace efforts since taking office in June last year.
The Egyptian leader helped broker a ceasefire between Israel and Hamas after violence flared up in Gaza in November.
And although he has been openly critical of Israel, Mohamed Morsi also pledged to abide by the peace treaty when he was voted into power.
“What he has been doing is supporting that peace treaty, continuing to work with us and with Israel on common goals, including in Gaza,” Victoria Nuland said.
“But we’ll also judge him by what he says.”
Egypt has been a key US ally since it signed the 1979 peace deal as part of the Camp David Accords.
But observers say fears remain that the new leadership might try to renegotiate the treaty.
“As long as peace and justice are not fulfilled for the Palestinians, then the treaty remains unfulfilled,” Mohamed Morsi told the New York Times shortly after winning the election last year.
University lecturer and nuclear scientist Mostafa Ahmadi-Roshan has been killed in a car explosion in north Tehran.
Mostafa Ahmadi-Roshan, an academic who also worked at the Natanz uranium enrichment facility and another unidentified person were killed in the attack.
The blast happened after a motorcyclist stuck an apparent bomb to the car.
Several Iranian nuclear scientists have been assassinated in recent years, with Iran blaming Israel and the US.
Both countries deny the accusations.
Iran’s Vice-President Mohammad Reza Rahimi told state television that the attack against Mostafa Ahmadi-Roshan would not stop “progress” in the country’s nuclear programme.
Mohammad Reza Rahimi called the killing “evidence of [foreign] government-sponsored terrorism”.
Local sources said Wednesday’s blast took place at a faculty of Iran’s Allameh Tabatai university.
Two others were reportedly also injured in the blast, which took place near Gol Nabi Street, in the north of the capital.
Mostafa Ahmadi-Roshan, 32, was a graduate of Sharif University and supervised a department at Natanz uranium enrichment facility in Isfahan province
Mostafa Ahmadi-Roshan, 32, was a graduate of Sharif University and supervised a department at Natanz uranium enrichment facility in Isfahan province, semi-official news agency Fars reported.
“The bomb was a magnetic one and the same as the ones previously used for the assassination of the scientists, and the work of the Zionists [Israelis],” deputy Tehran governor Safarali Baratloo said.
Witnesses said they had seen two people on the motorbike fix the bomb to the car, reported to be a Peugeot 405. A second person died in the attack though the car itself remained virtually intact.
The latest attack comes almost two years to the day since Massoud Ali Mohammadi, a 50-year-old university lecturer at Tehran University, was killed by a remote-controlled bomb as he left his home in Tehran on 12 January 2010.
Reports at the time described Dr. Massoud Ali Mohammadi as a nuclear physicist, but it later appeared that he was an expert in another branch of physics.
There was also confusion as to whether the attack had any domestic political overtones because of reports about his apparent links to an opposition presidential candidate.
However, in August 2011, an Iranian man – Majid Jamali Fashi – was sentenced to death for the killing, with state authorities saying he was paid by Israel’s Mossad spy agency. Israel does not comment on such claims.
Of the latest attack, Fars reports that the bombing method appears similar to another 2010 bombing which injured former university professor Fereydun Abbasi-Davani, now the head of the country’s atomic energy organization.
There has been much controversy over Iran’s nuclear activities.
Tehran says its nuclear programme is for peaceful energy purposes, but the US and other Western nations suspect it of seeking to build nuclear weapons.
In a statement quoted on Iranian television on Wednesday, the country’s atomic energy agency said its nuclear path was “irreversible”, despite mounting international pressure.