Lithuania's President Gitanas Nauseda said on Thursday that parliamentary parties had agreed on a plan to remove a constitutional provision prohibiting nuclear weapons on Lithuanian soil.

"The geopolitical situation is getting worse. Our constitution was written when geopolitical circumstances were totally different," he said.

Nauseda said there were no immediate plans to store nuclear weapons in Lithuania, but that removing the provision would ensure the country was not constrained if security circumstances changed in the future.

He said there was broad political consensus that Article 137 of the Constitution is "outdated".

According to Article 137 of the Lithuanian Constitution, the deployment of weapons of mass destruction or the establishment of foreign military installations is prohibited within the nation's borders.

"Opinions were practically unanimous. Almost all parliamentary faction leaders expressed the view that Article 137 has become obsolete and should not merely be amended but removed," Nauseda told reporters.

Nauseda argued that Lithuania is now virtually the only NATO member with a self-imposed ban on the deployment of nuclear weapons.

He pointed to neighbouring Finland, which recently repealed a similar restriction that had been established in law rather than enshrined in its constitution.

"It would be truly unfortunate if we became the weak link or a grey zone within NATO," the president said.

Debate over the constitutional provision has intensified amid broader discussions about European nuclear deterrence.

Former Defence Minister Dovile Sakaliene said last year that Lithuania should consider amending the constitution if its allies put forward concrete proposals to station nuclear weapons or related components in the country.

The issue also drew renewed attention after French President Emmanuel Macron proposed in March creating a new European nuclear deterrence framework under which partner countries could temporarily host France's nuclear-capable strategic air forces.