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Two huge explosions have rocked the Lebanese capital Beirut. So huge that buildings around the city have sustained damage. Dozens were killed and thousands injured.

It's thought the blasts were caused by ammonium nitrate - more than 2,700 tonnes of it - which was being stored in a facility at the city's port - rather than by a bomb as many first assumed.

Maha Yahya is director of the Carnegie Middle East Center. She says the ferocity of the blast meant she thought it had happened right outside her house.

(Photo: An ambulance at the site of the blast at Beirut's port. Credit: Reuters)