A police officer has been shot in the leg with an arrow during an armed standoff with a man in Adelaide overnight.

Authorities said they were called to a storage facility in Hendon 9pm yesterday after a fight broke out between two brothers.

One of the brothers then left the storage facility. Police subsequently arrived at the scene, only to be allegedly attacked by the other man, who fired several arrows.

One of the arrows hit an officer in the leg, causing non-life threatening injuries requiring hospitalisation.

The standoff came to an end at 1am after police took the suspect into custody.

He is currently in hospital under police guard receiving treatment for minor injuries.