GAZA CITY, Gaza Strip — A Hamas official in Gaza says the militant group has sentenced a local Palestinian to death for collaborating with Israel.

The official said the man was sentenced Wednesday to death by firing squad at a military court in Gaza. He spoke on condition of anonymity because he was not allowed to speak with reporters.

Palestinians who collaborate with Israeli intelligence are widely loathed within Palestinian society.

The Palestinian Center for Human Rights' says Hamas has issued 36 death sentences since it seized Gaza from the rival Fatah party in 2007. About 15 executions have actually been carried out.

The Palestinian rights group says it is "gravely concerned" over the continued death sentences imposed by both Hamas and the Fatah-dominated Palestinian Authority in the West Bank.