At least seven Palestinians have been killed in separate incidents of violence across the Gaza strip.
Five Hamas members were killed on Wednesday and several others injured in an Israeli air raid in the southern Gaza city of Khan Younis.
An earlier air raid killed an al-Quds Brigades member and injured two others in east Bureij refugee camp in central Gaza.
Al-Quds Brigades, Islamic Jihad's armed wing, said its fighters had clashed with Israeli special forces trying to sneak into the strip.
Israeli helicopters then intervened and fired two missiles at the Palestinian fighters.
Separately, a Palestinian farmer was killed near Kisovim crossing in southern Gaza Strip.
Minivan targeted
Hamas said the five people killed in the attack in Khan Younis were members of the Izz al-Din al-Qassam Brigades, its armed wing.
Two missiles directly hit the minivan they were travelling in, witnesses told Al Jazeera, leaving parts of dead bodies scattered in the street.
Dr Moaiya Hassanain of the Gaza health ministry said four other people were wounded in the attack.
A spokeswoman for the Israeli military confirmed that it had "carried out strikes on vehicles in Khan Younis and identified hitting them."
The Israeli military carries out near-daily airstrikes in Gaza, targeting Palestinian armed groups firing rockets into Israel.
More than 200 people have been killed since Israel and the Palestinians resumed peace talks in November.