Unidentified assailants shot dead two police officers patrolling a residential area in Islamabad, Interior Minister Sheikh Rashid Ahmed and police said June 4.
Hours after the attack late on June 3 in the Shamas Colony neighborhood of the Pakistani capital, Muhammad Khurasani, a spokesman for Tehrik-e Taliban Pakistan, claimed responsibility.
The Pakistani Taliban is separate from the Afghan Taliban, but it has its base in Afghanistan.
Police superintendent Mustafa Tanweer told the media that police teams were examining the crime scene and looking for clues about the identity of the killers.
Ahmed condemned the attack and ordered an investigation. He said in a video statement that efforts are under way to make the capital a "safe zone."
The capital shares a border with the populous Punjab Province, as well as the country's northwest passage to Afghanistan.