The Liberation Party, a tiny Islamic group, said Hisham Baradiyeh, a 36-year-old member of the group, was shot in the chest. The group calls for the establishment of a pan-Muslim state through peaceful means.
The government of Abbas, who is in Annapolis, banned protests against the conference. Enforcing the ban, police broke up small protests throughout Abbas' West Bank stronghold. There were no other fatalities reported, though several people were seriously injured.
Palestinian government officials did not immediately return messages seeking comment.