Shireen Abu Akleh, who is also a US citizen, regularly reported on-camera from across the Palestinian territories. AP
The 57 House members, largely left-leaning Democrats and led by Representative Andre Carson, noted that Shireen Abu Akleh held US citizenship and pointed to divergent accounts on how she died on May 11.
"As an American, Ms. Abu Akleh was entitled to the full protection afforded to US citizens living abroad," they wrote to Secretary of State Antony Blinken and FBI Director Christopher Wray.
Al Jazeera reporter Shireen Abu Akleh is seen on the ground after being shot in the face in Jenin on May 11. AFP
Al Jazeera and Palestinians say Israeli forces killed Abu Akleh, a prominent journalist, as she covered an Israeli army raid in Jenin, in the north of the occupied West Bank.
Israel says she may have been killed by Palestinian gunfire or a stray shot from an Israeli soldier.
The Israeli ambassador to Washington, Michael Herzog, said he was "disheartened" by the letter and that Israel had sought a joint investigation with the Palestinian Authority that would include a US observer role.
"Our call was flatly rejected by the PA, which is cynically using Ms. Abu Akleh's death to instigate an anti-Israel propaganda campaign," he said.
Children take part in a candlelight vigil to condemn the killing of veteran journalist Shireen Abu Akleh in Gaza. AFP
He called instead for Congress to press the Palestinian side on an investigation, adding that Israeli troops "would never intentionally target members of the press."
The State Department has said that it believes Israel can conduct a credible investigation but Blinken has also criticised the Israeli police for its use of force during Abu Akleh's funeral.
Muhammad Al Hammadi, the association's president, called for protecting journalists and holding accountable all those who assaulted or killed them while performing their work.
The Palestinian Authority, which administers parts of the occupied West Bank and cooperates with Israel on security matters, condemned what it said was a "shocking crime” committed by Israeli forces.
Ajay Lalwani, 31, a reporter for a local television station and an Urdu language newspaper, was shot multiple times while having his hair cut at a barber shop on Thursday, said Ashiq Mirani, the area police chief.
Heartrending scenes of a newborn plucked alive from the rubble and a broken father clutching his dead daughter's hand have laid bare the human cost of violent earthquakes in Syria and Turkey that by Wednesday had claimed 11,000 lives.
The Fire broke out over an area of about 100 square metres and was extinguished around an hour later, Interfax news agency reported, adding that the small refinery belonged to a company called Resource LLC.
Pope Francis offered his prayers for the thousands of victims of the earthquake in Syria and Turkey on Wednesday and called on the international community to continue to support rescue and recovery efforts.