The PTI leader was taken into custody from his farmhouse in Chak Shahzad, Islamabad, early Sunday morning.
According to sources, the Federal Investigation Agency’s (FIA) Cybercrime Wing arrested Swati for using foul language for the army chief and other senior military officers.
Following his tweets, a first information report (FIR) was filed against him, said sources.
Taking to Twitter, the senator used foul language for the army chief and other senior military officers, drawing condemnations from political and social circles.
Swati hurled cuss words at outgoing Chief of Army Staff General Qamar Javed Bajwa and used offensive language against Major General Faisal Naseer.
The PTI senator called out the name of Major General Naseer and threatened him that he would have to pay the price.