HAMPTON, S.C. — Authorities in South Carolina are investigating a shooting at a nightclub early Sunday that wounded at least nine people. It was the second mass shooting in the state during the Easter holiday weekend.

The South Carolina shootings, and one in Pittsburgh in which two minors were killed early Sunday, also left at least 31 people wounded.

South Carolina's State Law Enforcement Division is investigating the shooting at Cara's Lounge in Hampton County. The agency said in an email there were no reported fatalities. No information was immediately available on the severity of the injuries. Hampton County is roughly 80 miles west of Charleston. A phone call to the nightclub was not answered.

In Pittsburgh, two minors were killed and at least eight people when shots were fired during a party at a short-term rental property. The “vast majority” of the hundreds of people at the party were underage, the city's Police Chief Scott Schubert told reporters.

The two shootings come just a day after gunfire erupted at a busy mall in the South Carolina state capital of Columbia, about 90 miles north of where Sunday's nightclub shooting took place. Nine people were shot and five other people sustained injuries while trying to flee the scene at Columbiana Centre, Columbia Police Chief W.H. “Skip” Holbrook said Saturday. The victims ranged in age from 15 to 73. None faced life-threatening injuries.