Quetta: At least one person was hurt when a blast rocked the customs intelligence office located at Quetta’s Airport Road in Pakistan on Sunday, media reports said.
A security guard posted at the office told Geo News that three unidentified armed men had entered the office and held the staff hostage.
He added that the men had tied the hands of the staff and issued "grave threats to them".
The guard said the blast occured after unidentified men left the office.
No group has claimed responsibility for the incident so far.