The nuclear power plant of Tihange, provider for Electrabel | Mark Renders/Getty Images Security clamp-down at Belgian nuclear plants The two facilities at Doel and Tihange are under military protection.

Energy utility Electrabel has stepped up security at Belgium's two nuclear power plants, following the attacks in Brussels Tuesday.

The two plants — Doel, made up of four reactors, and Tihange, with three — have been closed, with "systematic control" of all vehicles coming and going, Anne-Sophie Hugé, a company spokeswoman told POLITICO.

Military and police have been onsite since the weekend, she added. Employees who are not needed to run the two power plants are now leaving the sites.

Military arrived at the Tihange plant on Friday, months after authorities in the local Huy municipality asked for more security, Belgium's RTBF reported last week.

"This is part of a comprehensive operation for the protection of power plants," Serge Dauby, director of communications at Electrabel, was quoted as saying. "In many countries, there is protection. For us, it was not the case, that's why we requested it."

Authors: