Thirteen people were being treated at the general hospital of Larissa, central Greece, on Tuesday for gunshot injuries suffered at a wedding on Monday night at the Roma camp of Nea Smyrni.

The 13 people, among whom are several children, received a range of minor injuries when one of the wedding guests, a 44-year-old man, tried to fire his hunting rifle into the air when the weapon backfired.

The 44-year-old has been arrested, while authorities are also seeking his father, who allegedly owns the weapon.

Firing guns into the air is a fairly common practice in various parts of Greece at large celebrations and especially at weddings.