The recently freed political prisoner, Oleg Sentsov, has arrived in Latvia for rehabilitation.

He was invited for treatment by the Latvian Foreign Ministry, Ukraininian news agency UNIAN reported on Sunday.

Sentsov, a filmmaker from Russian-annexed Crimea, was returned to Ukraine as part of a prisoner exchange with Moscow in September. He was sentenced to 20 years imprisonment in Russia for allegedly plotting terrorist acts against the occupying regime.

The week-long rehab in Latvia will also host 10 other former detainees, including their families.