Masked officers from Armenia’s National Security Service (NSS) entered the headquarters of the opposition Mother Armenia party in central Yerevan early on Friday, according to party representatives.

Former MP Aregnaz Manukyan said the officers arrived at the party’s office on Mashtots Avenue at around 7 a.m. She said staff members were ordered to leave the building, while opposition politician Andranik Tevanyan remained inside as NSS officers carried out “investigative actions”.

Armenian authorities have not yet issued a statement explaining the purpose of the operation or whether any charges have been filed.

The incident follows rising tensions surrounding Tevanyan, who is listed second on the Prosperous Armenia Party’s electoral slate. Legal pressure against him began after Prime Minister Nikol Pashinyan’s public statement warning of criminal proceedings.