MILWAUKEE (Reuters) - A police officer and three other people were killed in a string of shootings, including at a bank and a law firm, in central Wisconsin following what police referred to as domestic incident, media reported on Wednesday.

A suspect was taken into custody by police at an apartment building in Weston, a community of 15,000 about 90 miles (140 km) west of Green Bay, in the wake of the shootings, the Milwaukee Journal Sentinel newspaper reported.

The incident began with a “domestic situation,” the Journal Sentinel reported, citing a press release from the Rothschild Police Department.

At about 12:30 p.m. central time shots were reported fired at the Marathon Savings Bank in the nearby town of Rothschild, Todd Baeten, police captain for Wausau, Wisconsin, told an afternoon press conference. Police found two people shot at the bank and that the suspect fled, the Journal Sentinel reported.

Shots were then reported at a law firm in Schofield, Wisconsin at about 1:10 p.m. About 20 minutes later, police received a call from an apartment building in Weston. Police converged on the apartment complex and took the suspect into custody about an hour later after more shots were fired, the Journal Sentinel reported.

It is unclear where the police officer was shot and killed. Police did not disclose the identities of the suspect and the four people who were killed. Wausau police and the Wisconsin Division of Criminal Investigations declined to confirm the casualties to Reuters.