TAMPA — Police have arrested a man in a shooting that left four people wounded Saturday outside Carmine's restaurant in Ybor City.

Jihad Hakim Amos, 20, faces a charge of aggravated battery with a deadly weapon. He was arrested at 11:30 a.m. Thursday at his home at 9411 Chalet Drive, near Busch Gardens.

Detectives made the arrest based on information from witnesses who identified Amos, police said. He was booked in a Hillsborough County jail and held without bail.

Police were called about 2 a.m. Saturday to the restaurant at 1802 Seventh Ave. In the outside patio area, which was filled to capacity, officers found Matthew Musmian, 28, and Parish Jordan, 22, with life-threatening gunshot wounds, police said. The two were taken to Tampa General Hospital, where they underwent surgery.

Two other people, Shuan Smith, 29, and Leroy Monsalvatge, 22, were taken by family or friends to Tampa General and St. Joseph's Hospital, where they also were treated for gunshot wounds.

An investigation remained ongoing after Amos' arrest. Why it happened remains unclear.

The shooting was among a recent surge in gun violence that Tampa has seen in 2015. In March alone, police have documented 11 separate shooting incidents, which have left six people dead including three teens. The city's homicide rate is double what it was in the first three months of last year.

On Monday, police Chief Jane Castor held a news conference calling attention to the increase in gun violence and asking for the community's help.

The reasons for the shootings are unclear, but Castor said drugs and "territorial disputes" are a factor in some cases. Another commonality has been a reluctance by those involved to help police.