(Detroit, MI) -- More information is expected to be released today in connection with a shooting at a Detroit police station that injured four-officers. The shooting occurred just before 4:30 p.m. yesterday afternoon. According to authorities, a man wielding a shotgun walked into the Detroit Police Department's Northwestern District and opened fire. Officers returned fire killing the suspect. Four officers were injured and one remains in critical condition at Sinai Grace Hospital. He is expected to survive.