Nobel peace laureate Desmond Tutu has called Israel's blockade of the Gaza Strip an "abomination".

He strongly condemned what he called international "silence and complicity" on the blockade, which he compared to the actions of Burma's leaders.

Speaking at the end of a two day mission to the area, the former archbishop said the humanitarian situation there could not be justified.

Earlier, 60 Palestinians were detained in an Israeli raid on northern Gaza.

Residents in the Beit Hanoun area were summoned to a local square by Israeli troops with loudhailers before dozens were taken away, witnesses said.