These included the Irish Republican Army and the Abu Nidal Group.

VOA: special.2011.02.26

Nidal Abu Mohsen, 19, was shot in the head when he tried to enter the house to negotiate with Jarrar after repeated Israeli loudspeaker calls for his surrender failed, the Israeli army said.

BBC: Israel kills local Hamas leader

Abu Nidal - whose real name was Sabri Banna - died in Iraq in 2002, reportedly committing suicide.

BBC: Abu Nidal members jailed in France over 1988 attack

The prosecutors said the three men belonged to the group led by Abu Nidal, which was active in the 1970-80s.

BBC: Abu Nidal members jailed in France over 1988 attack