KARACHI: Two Pakistan International Airlines (PIA) pilots made history by becoming the first pair of sisters in Pakistan to fly Boeing-777 airplanes at the same time.

Maryam Masood and Erum Masood are both first officers who fly different planes, PIA Spokesman Danyal Gilani told Dawn.com. They are junior only to the plane's captain, who are often very experienced pilots, Gilani said.

"There is no known record of two real sisters having flown the same weight category aircraft concurrently," the PIA spokesman said.

Erum Masood was recently upgraded to fly a Boeing-777, leading them both to achieve this feat.