Prime Minister Datuk Seri Najib Tun Razak has expressed his concern over the mass shooting in Orlando, Florida, which has been described as the worst in United States history.

"Horrified by Orlando shootings. Our prayers are with families and friends of the victims. Islam abhors killing of innocent people," he said in the latest post today on his Facebook account.

At least 50 people were killed and 53 others wounded, including a police officer, early Sunday in the shooting at a popular nightclub in Orlando.

Meanwhile, Wisma Putra said today there were no reports so far of Malaysians affected by the shooting.