NATO is launching a new mission to protect undersea cables in the Baltic Sea region after a string of incidents that have heightened concerns about possible Russian activities, the alliance’s leader said.

NATO countries will deploy frigates, patrol aircraft and naval drones in the Baltic Sea to help protect critical infrastructure and reserve the right to take action against ships suspected of posing a security threat,

The incidents contributed to mounting European fears of sabotage, as NATO officials accuse Russia of a growing “destabilization campaign” over their military support for Ukraine and sanctions against Moscow.