UPDATE: Police have arrested and charged a 55-year-old man with attempted murder.
He's from St. Catharines, and his bail hearing was on Friday.
Anyone with information regarding this incident should contact the NRP by calling 905-688-4111, with extension 9417.
Two men had to be airlifted to hospital, after a fight in St. Catharines.
Police were called out to an apartment building in the Queenston Street and Riordon Street area this morning.
They found two men in their 50's with serious injuries.
Police say they know each other and they're not looking for anymore suspects.
The investigation is ongoing.
Anyone with information regarding this incident should contact Niagara Regional Police by calling 905-688-4111, dial option 3 and use badge number 9417.