The blast at a construction and quarrying company, where explosives were being stored in four containers, ripped through the area leaving a trail of devastation.

President Wavel Ramkalawan said it looked "as if we went through a war".

No deaths were reported but one person was being treated in intensive care.

The island nation is also coping with the impact of flooding following heavy rains this week.

Cable & Wireless Seychelles has donated $76,000 (£60,000) for relief efforts, the Seychelles Nation newspaper reports.