BBC News with Mike Cooper

A passenger plane has crashed in Nigeria's biggest city Lagos, killing all 150 people on board. The airliner, operated by the Indian-owned Dana Air, was on a flight from the capital Abuja when it came down. From Lagos, Will Ross reports.

On crashing, the plane burst into flames, and there were chaotic scenes as people rushed to the area, black smoke

billowing

in the air. There were at least 150 people on board. None of them survived. The plane first tore into a printing works before hitting residential buildings. It's not yet clear how many people died on the ground. It's not known what caused the crash, which happened in overcast weather. Last month, a similar Dana airplane, possibly the same one, developed a technical problem and was forced to make an

emergency landing

in Lagos.

Saudi Arabia has dismissed a speech from the Syrian President Bashar al-Assad, in which he repeated that the conflict in Syria was the result of foreign interference. The Saudi foreign minister accused Mr Assad of

playing for time

by accepting but not implementing a UN-backed peace plan.

Protests are continuing in the Egyptian capital Cairo after the public prosecutor confirmed that a legal appeal would be launched against the life sentence imposed on the former President Hosni Mubarak. Thousands of demonstrators staged noisy protests into the night in Tahrir Square where activists called for a new uprising.