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Mohammed Zaatari, Associated Press
A civil defense worker, walks past burning vehicles at the scene of an explosion that killed Fathi Zeidan a local Palestinian security official, near the Palestinian refugee camp of Ein el-Hilweh, in the southern port city of Sidon, Lebanon, Tuesday, April 12, 2016. Officials said Tuesday's blast instantly killed Zeidan who is affiliated with Palestinian President Mahmoud Abbas' Fatah group.

BEIRUT — An explosion just outside the southern Lebanese city of Sidon on Tuesday killed a local Palestinian security official amid tensions between the main Palestinian faction and extremists groups.

The blast instantly killed the official, a member of Palestinian President Mahmoud Abbas' Fatah group. Lebanese officials identified the man as Fathi Zeidan, Fatah's security chief in the refugee camp of Mieh Mieh, which is located near Sidon.

According to the officials, the explosion occurred after a security meeting in Mieh Mieh that was attended by Zeidan, during which the bomb was believed to have been placed inside his car.

The bomb weighed nearly 1 kilogram (2.2 pounds) and the force of the blast completely destroyed Zeidan's car and scattered his remains, said the Lebanese officials, speaking on condition of anonymity because they were not authorized to talk to the media.

The Lebanese Armed Forces issued a statement, saying the bomb was placed inside the BMW and adding that an investigation was underway.

No one immediately claimed responsibility for the bombing.

The camp of Mieh Mieh is also located near another Palestinian refugee camp in Lebanon — Ein el-Hilweh — where Fatah gunmen have recently clashed with Islamic extremists. Ein El-Hilweh is the largest of 12 refugee camps in Lebanon.

Tiny Lebanon is home to some 400,000 Palestinian refugees.