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.

Crew on board an oil tanker accused of sabotaging undersea power and communications cables in the Baltic Sea were poised to cut other cables and pipelines when Finnish authorities boarded the vessel last month,

Security in the Baltic Sea will be strengthened through increased Nato presence, a decision announced after a meeting of Nato member states in Helsinki on Tuesday.

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.

By Anne Kauranen, Essi Lehto and Andreas Rinke HELSINKI (Reuters) -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,

European nations must be prepared to face further incidents in the Baltic Sea following the recent damage to undersea infrastructure, leaders of NATO countries in the region said on Tuesday ahead of a security meeting in Helsinki.

NATO countries on the Baltic Sea met in Helsinki on Tuesday, looking to boost security following the suspected sabotage of undersea cables, widely blamed on Russia.