Police search for suspect in Wisconsin mall shooting

Police respond to the shooting at a Wisconsin mall. Photo / Twitter

Police in the US are still searching for a man suspected in a shooting at a Wisconsin mall that injured eight people.

"Investigators are working tirelessly to identify and apprehend the suspect from yesterday's shooting at Mayfair Mall," the Wauwatosa Police Department said in a tweet today.

Police also asked anyone who witnessed the shooting on Friday (US time) to contact them.

Chief Barry Weber gave no motive for the attack at the Mayfair Mall during a briefing on Friday evening. He said the shooter had left the scene before officers arrived, and the extent of the victims' injuries was unknown.

"Preliminary statements from witnesses indicate that the shooter is a white male in his 20s or 30s," Weber told reporters.

"Investigators are working on determining the identity of that suspect."

Police said the shooting apparently stemmed from an altercation and was not a random act.

Authorities said the mall was closed on Saturday and investigators were on scene overnight.