The site of the Hanhikivi 1 nuclear power plant project pictured on November 3, 2021.

Finnish-led consortium Fennovoima said on Monday it had scrapped a contract for Russia’s state-owned Rosatom to build a nuclear power plant in Finland, citing delays and increased risks due to the war in Ukraine.

The announcement ended months of uncertainty and years of political wrangling over the planned Hanhikivi 1 plant, a project that would have increased Finland’s dependency on Russia for its energy.

Fennovoima said it had terminated the contract due to RAOS Project’s “significant delays and inability to deliver the project,” referring to Rosatom’s Finnish subsidiary.

“The war in Ukraine has worsened the risks for the project. RAOS has been unable to mitigate any of the risks,” it added, without going into further detail.

Rosatom said it was “extremely disappointed” by the decision which it said had been taken without any detailed consultation with the project’s shareholders – including another of its subsidiaries.

“The project has been progressing and we had established a good working relationship with our client,” it said in its statement, adding that it reserved the right to defend its interests “in accordance with applicable contracts and laws.”

Fennovoima chairman of the board Esa Harmala (L) and CEO Joachim Specht (R) attend a press conference in Helsinki, Finland on May 2, 2022.

The plant was commissioned by Fennovoima, a consortium in which Finnish stakeholders including Outokumpu (OUT1V.HE), Fortum (FORTUM.HE) and SSAB (SSABa.ST) own two-thirds. Rosatom’s subsidiary RAOS Voima holds the rest.

Finland’s government approved Rosatom’s involvement in 2014, although surveys suggested Finns felt growing unease about the deal following Russia’s annexation of Crimea earlier that year.

After Russia’s invasion of Ukraine in February – which Moscow calls a special military operation – Finland’s minister of economic affairs, Mika Lintila, repeatedly said it would be “absolutely impossible” for the government to grant a construction permit.

Finland shares a 1,300-km (810-mile) mile border with Russia. The Ukraine conflict has pushed Finland and neighboring Sweden to the verge of applying for NATO membership.

Fennovoima’s management said it was too early to speculate on what could happen next and whether it would seek another partner to complete the power plant.

“I think there will be need for nuclear power also in the future but that’s only my personal opinion,” the chairman of Fennovoima’s board, Esa Harmala, told reporters.

The cost of the planned facility was initially set at 7.5 billion euros ($7.89 billion) and Harmala said the consortium had already spent 600-700 million euros on the facility.

Fennovoima said its cooperation with RAOS Project would end with immediate effect and that it was not yet possible to say what would happen to Rosatom’s holding in Fennovoima.