Jerusalem, Sep 1 (IANS) Four Israelis were killed in a shooting attack near the West Bank town of Hebron Tuesday, an Israeli army spokeswoman said.

The incident occurred at about local time 7 p.m. (1700 GMT) when gunmen opened fire at four civilians travelling in a vehicle near Kiryat Arba, fatally wounding them, the spokeswoman told Xinhua.

Medical sources confirmed that the victims were from the same family.

Israeli army and police forces are in hot pursuit of the gunmen and are using a helicopter in the chase.

Palestinian National Authority (PNA) security forces have joined the investigation into the attack, reported the Palestinian news agency Ma’an.

No group has claimed responsibility for the incident.

The shooting, appearing to be a planned ambush, happened on the eve of a would-be breakthrough in Israeli-Palestinian peace process.

Earlier Tuesday, Israeli Prime Minister Benjamin Netanyahu left for Washington to attend the US-proposed direct talks between Israelis and Palestinians, which is slated for Sep 2 in Washington.