Police in Madinah are trying to determine why a Saudi man suddenly stabbed a Filipino emergency room nurse multiple times on his arms while the nurse was on duty at a hospital. His assailant was arrested.

Rolando Mina, 29, suffered serious injuries when he was attacked by the 22-year-old Saudi man, Rappler reported. A video of the incident circulated online shows Mina trying to fend off blows from a knife while at the nurse’s station. Hospital staff apprehended the man.

The Philippines Department of Foreign Affairs said in a statement that Mina does not know his attacker and has no idea why he was stabbed. Saudi police are still questioning the man and also have no motive for his actions.

Mina is now in a stable condition. His employers provided security guards and said his salary would be paid while he recovered.