NATO Secretary General Jens Stoltenberg on Tuesday said the alliance stands with Estonia and Finland over concerns about damage to the undersea pipeline Balticconnector.
Stoltenberg said he spoke to Finnish President Saili Niinistö on Tuesday.
"NATO is sharing information & stands ready to support Allies concerned," he wrote on X, formerly known as Twitter.
The Estonian government has not yet commented on the situation. A press conference will be held this evening.
A leak in the Balticconnector pipeline between Estonia and Finland was detected early on Sunday morning. The pipeline was then closed.
Additionally, there is damage to the communication cable between the countries, the Finnish Government said.
Balticconnector is a gas pipeline between the city of Inkoo in Finland and the Estonian Paldiski. The sea part runs along the bottom of the Baltic Sea, is almost 80 kilometers, 55 kilometers in Estonia and 21 kilometers in Finland onshore. The gas pipeline ensures Finland's access to an underground gas storage facility in Latvia, in Incukalns (the capacity of up to 2.6 billion cubic meters per year).