Three Palestinians including one woman were killed on Tuesday by Israelis after claiming they attempted stabbing attacks in Jerusalem and Tel Aviv, Israeli troops said.
One Palestinian was shot dead by Israeli occupation forces after he wounded two Israeli police officers in Jerusalem on Tuesday, Israeli authorities and medics said.
The gunman opened fire on a group of police officers on a major commercial artery in annexed east Jerusalem near the Old City and wounded two, police claimed.
A police spokesman said the attacker used an automatic weapon.
Earlier, a Palestinian was killed in a liquor store in Petah Tikva near Tel Aviv after the store owner and an ultra-Orthodox Jew claimed he stabbed the Jew.
Police said they suspected it was a "terrorist" attack but had not excluded other possible motives.
The two attacks came shortly before US Vice President Joe Biden arrived in Israel for meetings with Israeli and Palestinian leaders amid the ongoing wave of violence. It was the latest incident in an almost six-month long surge of Israeli-on-Palestinian deadly repression met with violent responses by Palestinians against settlers and Israeli soldiers.
Meanwhile, almost daily stabbings, shootings and car-ramming attacks by frustrated and unarmed Palestinians have killed 183 Palestinians, 28 Israelis, an American, a Sudanese and an Eritrean since October 1.
A Palestinian woman was also shot dead by Israeli occupation forces in Jerusalem's Old City over allegations of stabbing Israeli police.
The current wave of protests by Palestinians and repression by Israeli occupation forces started in late July when toddler Ali Dawabsha was burned to death and three other Palestinians were severely injured after their house in the occupied West Bank was set on fire by Israeli settlers.
Settlement-building, racial discrimination, confiscation of identity cards, long queues at checkpoints, as well as daily clashes and the desecration of Al-Aqsa mosque, describe Palestinians' daily suffering.
The anger of Palestinian residents of Jerusalem has increased in the last three years after the Israeli authorities allowed increasing numbers of Jewish settlers to storm the Al-Aqsa mosque.
The surge in violence has been fuelled by Palestinians' frustration over Israel's 48-year occupation of land they seek for an independent state, and the expansion of settlements in those territories which were captured by Israel in the 1967 Middle East war.
Palestinian leaders say a younger generation sees no hope for the future living under Israeli security restrictions and with a stifled economy. The latest round of U.S.-brokered peace talks collapsed in April 2014.
*The story has been edited by Ahram Online.