Watch | Three blasts rock the city of Brussels

Explosions tore through the departure hall of Brussels airport and struck a metro station on Tuesday morning killing up to 21 people and injuring several others, local reports said.The Belga agency said shots were fired and there were shouts in Arabic shortly before the blasts at the airport. Pictures on social media showed smoke rising from the terminal building through shattered windows and passengers running away down a slipway, some still hauling their bags.