"When I was at PIMS, Islamabad, armed motorcyclists dressed in plain clothes came to my doorstep at 2am. I contacted some friends when informed [about the incident]. They [armed men] rode away when they [friends] arrived there," Saeed wrote.
"Not only this but they crossed the Prime Minister House and diplomatic enclave as well and moved further ahead," he added, in a separate tweet containing a video.
The video showed two men riding a motorcycle seen at a distance from the car from which the video was filmed.