A man has been charged with aggravated assault and two suspects are being sought by police following three separate assaults that sent five men to hospital in Calgary Saturday night.

The weekend of violence began at 6:45 p.m. MT when two men got into an argument inside a food court near the 700 block of 2nd Street S.W., Calgary police said. A man took out a knife and a man was stabbed in the groin.

The victim, 45, was in serious condition in hospital Sunday after undergoing surgery.

Gene Paul Mayhew, 38, has been charged with aggravated assault, possession of a weapon dangerous to the public peace and carrying a concealed weapon.

A 25-year-old man is also in serious condition after being shot in the chest just before 2 a.m. during an altercation between two groups of men in a parking lot in the 500 block of 10th Avenue S.W.

Calgary police said the shooter is described as a white, about 25 years old, six feet tall with a muscular build and dirty-blond hair. He fled in a sport utility vehicle, and police are seeking tips in identifying and locating him.

The victim is in hospital in "serious, non-life threatening condition," police said.

Trio stabbed

Three more men suffered serious stab wounds during a conflict with a fourth man at about 2 a.m. in the parking lot in the 3200 block of 5th Avenue N.E.

"The fight escalated to the point where the fourth male stabbed each of the three victims before fleeing the scene," Calgary police said in a release.

Witnesses helped the three get to the Foothills Hospital, where staff called police and performed emergency surgeries.

Police are seeking public assistance in locating the suspect, who is described as an Asian man in his mid 20s with dyed blond hair. He was wearing a bright blue puffy jacket.