Palestinian witnesses say an Israeli missile strike has killed at least two men traveling in a car in northern Gaza Strip.

Witnesses said the men belonged to the militant group Islamic Jihad, adding the attack Monday seriously wounded a third militant traveling with them.

Israeli military officials said the target of the attack was a senior Islamic Jihad member.

Earlier, Palestinian President Mahmoud Abbas warned he may delay parliamentary elections set for this month if Israel blocks voting in East Jerusalem.

Mr. Abbas has been under intense pressure to postpone the January 25 vote, especially from members of his own Fatah party.

Last month, Israeli officials said they may block voting in East Jerusalem if candidates from the Hamas militant group are allowed to take part in the balloting.