Egypt has threatened to void its decades-long peace treaty with Israel if Israel begins a large-scale offensive on Rafah, where some 1.4 million Palestinians are sheltering in densely packed tent camps on the border with Egypt.

The authority that oversees Egypt's Suez Canal says one of its tugboats has sunk in the waterway after a collision with a tanker.

Antiquities authorities in Egypt say archaeologists have unearthed the ruins of a temple for the ancient Greek god Zeus in the Sinai Peninsula.