Belgium steps up security at nuclear sites in wake of attacks

Military presence increased at Tihange and Doel plants as officials continue previous investigation of a secret video shot by man linked to Paris attacks

Belgian authorities have stepped up security at nuclear sites but safety officials said there was no concrete element to suggest a specific threat against the country's reactors or plants.

Secret video footage of a senior Belgian nuclear official was found in November at the home of a Belgian man, Mohamed Bakkali, suspected to be part of the logistics network for November's Paris attacks that killed 130 people.