ISLAMABAD (APP) - Two buildings were destroyed in the blast that occurred on Sialkot Road of Gujranwala district, private television channels reported on Tuesday night. It has been reported that the blast was caused by bursting of a pipeline. According to details, police and rescue teams have reached the scene of the incident. They are trying to put out the fire. One of the two buildings destroyed by the blast was that of a private bank. It is believed that three persons, following the blast are lying burried under the debris of the buildings. The rescue teams are trying to pull them out from there. Police have cordoned off the area . '