23 dead in Gaza clashes

Gaza City: At least 20 Palestinians have died in the worst clashes with Israeli troops in Gaza in a month.

Among the dead was a Reuters cameraman, who was killed while covering the violence. Five children died, according to Palestinian officials. Three Israeli soldiers also died in the clashes.

Wednesday's death toll was the highest since a broad Israeli military offensive in early March that killed more than 120 Gazans, including dozens of civilians.

The violence has also jeopardised Egyptian efforts to mediate a cease-fire.

Meanwhile, UN Secretary General Ban Ki-moon expressed concern over the violence.