It's time again to play: Who's Telling the Truth?

Palestinian Arab news:

Gaza – Ma'an - Palestinian security sources said that 20 year old, Mohammad Shakir Sa'eedi, a member of the Al Aqsa Brigades, the main military wing of Fatah, was killed by Israeli forces, east of Gaza City on Tuesday morning.

Medical sources said that an ambulance that was transporting two injured Palestinians, including Sa'eedi, was targeted by the Israeli forces, Sa'eedi died and the other sustained serious wounds.

Eyewitnesses said that Sa'eedi was injured along with another man in an armed clash with the Israeli forces, near the border fence east of the Gaza Strip, medical sources confirmed the injury of two Palestinians on Tuesday morning, and told Ma'an that the Israeli forces shot at the ambulance while transporting the two men at 8 am.

Israeli news:

A Palestinian man was killed during a gun battle between an armed cell belonging to the al-Aqsa Martyrs Brigades, an offshoot of Fatah, and IDF forces near the Karni crossing in northern Gaza.

The cell was carrying an explosive device, which detonated during the exchange of fire, killing one of the gunmen.

The Karni goods crossing has been a frequent target of attacks in the past. (Hanan Greenberg and Ali Waked).

Which one passes the smell test?

Wafa and IMEMC Palestinian Arab sources don't mention a thing about them being in an ambulance.

UPDATE: YNet adds much more detail now:

A Palestinian was killed Tuesday morning in exchanges of fire which erupted near the Karni crossing between Israel Defense Forces soldiers and gunmen of the al-Aqsa Martyrs' Brigades, Fatah's military wing.

During the exchanges of fire, an explosive device belonging to the gunmen exploded, killing one of them. Kalashnikov rifles were found in the area.

Shortly before 9 a.m., IDF soldiers spotted two gunmen attempting to plant an explosive device on the border fence near the Karni crossing. Soldiers from the Givati Brigade arrived at the area and exchanges of fire erupted between the troops and the gunmen.

During the exchanges of fire, the gunmen's explosive device exploded, killing one of them. The soldiers searched for the other gunman.

IDF officials estimated that the two planned to carry out a terror attack, as rifles and weapons were found in the area.

Palestinian sources reported that the man killed in the incident was Muhammad Saidi, 20, a member of the al-Aqsa Brigades.