An Israeli air raid on the Gaza Strip has killed at least 2 people and left 3 missing.
The Israeli military announced it attacked at least 3 tunnels in southern and central parts of the Gaza Strip between Saturday night and Sunday morning.
Palestinian medical workers say 2 people working in the tunnels were killed and 3 are missing.
The Islamic fundamentalist group Hamas is said to use the tunnels to smuggle goods from Egypt and to get into Israel.
The Israeli military says the air raid is retaliation for the killing of 4 Israeli settlers by Hamas in the West Bank on Tuesday.
The raid was the first by Israel since US-sponsored Middle East peace talks began on Thursday.
Hamas announced it would continue attacking Israeli settlers to disrupt the peace talks.
Retaliatory acts from both sides are casting a shadow over the negotiations.