FORT MYERS, Fla. -- Two people were killed and two others were wounded in a shooting at a shopping center in Florida, according to authorities. CBS affiliate WINK-TV reports that Lee County Sheriff Carmine Marceno said the Tuesday night shooting at the Bell Tower Shops in Fort Myers didn't appear to be random.

Marceno said 55-year-old Kevin Robinson and his 33-year-old son Javarsia Riggins were both fatally shot.

A woman at the scene told the station she was eating at TGI Fridays with her family when they went out for a cigarette. She said shots rang out and someone fatally shot her husband and her son.

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Witnesses said they heard up to 20 gunshots, WINK reported. Marceno said authorities responded to the shooting around 9:30 p.m. and found the victims.

Marceno said the injured people were taken to a hospital. An unidentified woman was in critical condition and an unidentified man was being treated for minor injuries, WINK reported.

No arrest has been made, police said.