Two explosions have been reported at Zaventem airport in Brussels. <br /> <br />Images on social media from the scene showed smoke rising from one of the terminal buildings. The cause of the explosions is unknown. <br /> <br />Some reports from the scene speak of casualties but this has not been confirmed. <br /> <br />The blasts come four days after the capture in Brussels of Salah Abdeslam, the main suspect in the Paris attacks in November. <br /> <br />Belgian media say the airport is being evacuated. It has been closed to flights. Rail transport to the facility has been halted. <br /> <br />Social media reports from the scene speak of panic as people fled the airport buildings. <br /> <br />Images showed a swathe of shattered glass on one of the buildings. <br /> <br />Other reports say at least one explosion was close to the American Airlines check-in area but again this has not been confirmed. <br /> <br />The Belgian broadcaster RTBF quoted a witness as saying there were people injured or unconscious in the departure area, opposite the Sheraton hotel.
