ANKARA, Turkey — A bomb attack targeting an outdoor wedding party in southeastern Turkey killed at least 30 people and wounded 94 others, the authorities said Sunday.

Deputy Prime Minister Mehmet Simsek said the “barbaric” attack in the city of Gaziantep, near the border with Syria, on Saturday appeared to be a suicide bombing. Other officials said it could have been carried out by either Kurdish militants or Islamic State extremists.

Photographs taken after the explosion showed several bodies covered with white sheets as a crowd gathered nearby.

Early on Sunday, the Gaziantep governor’s office raised the death toll to 30 from 22. It said the number of wounded remained at 94.