Several unrelated shootings early Saturday left two people dead and at least four people injured in the Twin Cities.

In St. Paul, police are investigating a 3:30 a.m. shooting in an apartment building in the 200 block of E. 5th Street that killed a woman and severely wounded a man. The man, who suffered several gunshot wounds, was treated at Regions Hospital. He is expected to survive.

A 29-year-old suspect was found on the third floor of the building and arrested, said St. Paul police spokesman Steve Linders. A motive for the killing remains unclear, he said, as does the suspect’s relationship with the victims.

The Ramsey County medical examiner will identify the woman after performing an autopsy.

In Minneapolis, police officers found a man critically injured from a gunshot wound at 2:28 a.m. after responding to a ShotSpotter activation near 27th and Knox avenues N. He was taken to North Memorial Medical Center in Robbinsdale, where he died.

The victim’s identity and details of what led to the shooting have not been released. The Hennepin County medical examiner’s office will conduct an autopsy.

The man’s death marked the seventh homicide of the year and ended a bloody week in north Minneapolis. On Wednesday, a 20-year-old man was killed when rival gang members opened fire on a group of people holding an impromptu memorial in the Willard Hay neighborhood.

At first glance, Saturday’s shooting at Knox Avenue N. does not appear to be related to the earlier homicide, said Minneapolis police spokesman John Elder. Both cases remain under investigation.

No arrests have been made. Information that leads to the arrest and conviction of a person in this case may be eligible for a cash reward. Anyone with information is asked to call CrimeStoppers at 1-800-222-TIPS (8477).

Also Saturday, gunfire erupted around 1:45 a.m. near 2nd Street N. and West Broadway. Three people were hospitalized with noncritical injuries from gunshot wounds, Elder said.