The NFL has said it would increase security and police presence outside its stadiums this weekend after the deadly attacks in Paris.

The league has been in communication with the FBI and Department of Homeland Security, saying there are no known threats against NFL stadiums.

“The safety of our fans, stadium personnel, and teams at all NFL games is our priority, and security at our games is robust,” the league said in a statement. “Our procedures have been certified and designated by the Department of Homeland Security since 2008 as effective anti-terrorism technology. All NFL clubs use mandatory metal detector screening and multiple layers of perimeter security external to the stadium to safeguard fans and the stadium from explosive threats.”

Over 129 people died Friday night in Paris, including 4 that were killed by explosives at the Stade de France, where France and Germany were playing a friendly soccer game.