Two arrests have been made after armed police were sent to a town following reports of a shooting.
South Wales Police received a call to the Redlands Road area of Penarth at about 14:00 BST on Thursday.
A man, 20, and a boy, 16, have been arrested on suspicion of possession of a firearm and are in police custody.
There are no reports of serious injuries, although one male youth suffered a cut to his hand, police said.
Armed police are still in the area as a precaution, while officers are at a number of houses in the town investigating.
The 20-year-old man arrested is from the Heath area of Cardiff and the 16-year-old boy from Llanrumney, with both taken to Cardiff Bay police station for questioning.
A witness, who did not want to be named, said they heard three shots fired following an altercation near the junction with Stanwell Road.
Resident Jenny Gunnarsson said she was in her bedroom when she heard a loud bang before five police cars arrived at the scene.
Redlands Road is closed from the junction at the Cefn Mably Hotel to Elfed Avenue, with people asked to avoid the area.
Investigating officers appealed for any information or video footage.