Meanwhile, members of the public and political factions headed to Kafr Dan, Abed's home town, in the occupied West Bank to demonstrate in protest over the killing.
Israeli forces had raided the village early on Saturday morning looking for people it describes as "wanted activists", Al Jazeera's correspondent reported.
Residents told Al Jazeera that Israeli snipers positioned on the occupied buildings opened fire at Abed.
|"Killing the Palestinian policeman means that Israel's escalation does not even rule out the Palestinian security services"|
Adnan al-Damiri, police chief
His family said he was in the house at the time and unarmed. He was shot twice and died immediately, they said.
Israeli forces continued search operations in Kafr Dan, detaining 10 people, Al Jazeera's correspondent reported.
Adnan al-Damiri, Jenin's police chief, accused the Israeli army of targeting its officers and held it responsible for the ongoing escalation in Jenin.
"Killing the Palestinian policeman means that Israel's escalation does not even rule out the Palestinian security services," al-Damiri said.
Palestinian police consider the Israeli operation an attempt to obstruct its efforts to restore security in Jenin, he added.
In Gaza City, three explosive devices were set off in the American International School causing damage but no injuries, Palestinian security sources and witnesses said.
"A large number of masked gunmen attacked the school at dawn. They poured petrol all around and blew up several explosive devices and destroyed some of the premises," Rebhi Salem, the school's director, said.
|Three explosives devices were set off at the |
American International School [AFP]
The armed men said they were part of an al-Qaeda organisation operating in Gaza, he added.
The school is a private institution that is part of an association of "American Schools" in the Middle East. The curriculum stresses English as well as Arabic studies. None of the teachers are American and a US embassy official said the school has no connection to the US government.
Two members of staff were briefly abducted from the school in March 2006.