NDTV further states that Imran Khan was leading a protest march to Islamabad to demand snap elections.
Chaotic scenes broke out near Imran Khan's reception camp at Allahwala Chowk in Gujranwala after gunshots were fired, reported local channel Geo News. The report added that several people were injured.
There may have been two gunmen who fired - one with a pistol and another with an automatic rifle. One of them was seen being tackled and was later arrested.
This comes weeks after Pakistani Journalist Arshad Sharif, was shot dead by police in Nairobi, Kenya on Sunday (October 23) night,
The journalist was shot dead Sunday night along the Nairobi-Magadi highway in what police termed as a mistaken identity.
Arshad Sharif was shot in the head and killed by police after he and his driver allegedly breached a roadblock that had been set up to check on motor vehicles using the route.
They were driving from Magadi town to Nairobi when they were flagged down at a roadblock being manned by a group of police officers, police said.
Heavy rains to persist as number of missing persons rises