PARIS (Reuters) - French anti-terrorism police are investigating the theft of 28 kg (61 lbs) of plastic explosives from a site near the southeastern city of Lyon, officials said on Friday.

Staff at a mine clearance centre at Corbas, near Lyon, noticed that thieves had apparently broken into the site, which was not guarded, and taken explosives and detonators.

Interior ministry spokesman Gerard Gachet told France’s LCI television that the director of the centre had been suspended for allowing the explosives to be stored at the unsecured site.