(CNN) — Three people were killed and at least eight others injured when a gunman on a boat pulled up to a waterfront bar in North Carolina Saturday night and opened fire, officials said.

A suspect is in custody in relation to the shooting at American Fish Company in Southport, city public information officer ChyAnn Ketchum said in a news release. The extent of the injuries is unknown.

The shooting adds to the growing list of bars, restaurants, shopping centers, schools and other venues in the US generally thought of as safe that have experienced gun violence. There have been at least 320 mass shootings – with at least four people shot, not including the shooter – in the US so far this year, according to the Gun Violence Archive.

The shooting in Southport happened just before 9:30 p.m.,

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