Mahmoud Abbas, who is expected to win Sunday's election for the presidency of the Palestinian Authority, condemned "the Zionist enemy" yesterday after seven children on their way to pick strawberries were mistaken for Palestinian militants and killed by Israeli tank shells. The tanks used anti-personnel shells, which throw out thousands of metal darts in a deadly cloud. Children aged 10, 12, 13 and 14 and three 17-year-olds were killed. A further 11 people were injured, four critically. The attack took place near Beit Lahiya, in northern Gaza, from where militants had been firing mortars at Israeli positions on the Gaza border, injuring one person.