While the parties have fought violent battles in the past , they 've made repeated announcements of plans to form a unity government as well . The victim , a member of Hamas , is in serious condition , police say . Police call the stabbing a terrorist attack by a Muslims . Palestinian party Hamas cancels memorial for former Palestinian leader Mahmoud Abbas . Fatah blames rival the Israel Defense Forces , saying it 's been bombing Fatah leaders ' homes .
The victim , a member of Hamas , is in serious condition , police say . Police call the stabbing a terrorist attack by a Muslims . Palestinian party Hamas cancels memorial for former Palestinian leader Mahmoud Abbas . Fatah blames rival the Israel Defense Forces , saying it 's been bombing Fatah leaders ' homes .