Two people were injured in separate shootings early Sunday in North Beach and Potrero Hill, police said.

The first incident occurred at 2:18 a.m. at Montgomery and Vallejo streets near Broadway. According to police, two groups of people shot at each other for unknown reasons.

A man was hit in the leg, police Sgt. Michael Andraychak said. The victim, a 19-year-old from the city of Richmond, was hospitalized and is reportedly in stable condition.

About 3 a.m., a male victim was shot at Missouri Street and Turner Terrace, police said. He was listed as being in stable condition.

There had been no arrests as of Sunday night.