The office gate of the political party Muttahida Qaumi Movement-Pakistan (MQM-P) was padlocked on Saturday night in Lahore by unidentified individuals.
A member of the party's Rabita Committee, Waseem Khokhar, has said computers and important documents were missing from the office when they went inside after breaking the lock in presence of the police, Geo News reported.
The perpetrators of the alleged incident have not yet been identified and an encroachment attempt case has been filed, according to the reports.
Party's former convener Farooq Sattar has condemned the incident.
MQM is a political party in Pakistan that was founded by Altaf Hussain in 1984.
Currently, the party is split into two main factions: MQM-London faction and MQM-Pakistan faction.