Police investigate triple stabbing in Perth

Police have cordoned off an area in Northbridge in Perth, where three people were stabbed early this morning.

Police say the stabbings occurred near the intersection of Roe and Fitzgerald streets about 2:30am AWDT.

Inspector Trevor Davis says police are investigating.

"A section of that area has been cordoned off for crime scene examination," he said.

"Detectives are interviewing witnesses."

St John's Ambulance says two of the victims were brothers and one received a serious stab wound under his armpit.

They have been taken to Royal Perth Hospital.

Meanwhile in Victoria Park a woman has died after being hit by a train.

Police say she was struck about 1:30am AWDT.

In southern WA, police are trying to determine the identity of a man who died in a traffic crash on the Redmond-Hay River Road, 20 kilometres north of Albany, about 1:00am AWDT.

His death comes after that of a 15-year-old boy who was injured in Kinross on Friday.

They boy was crossing Burns Beach Road when he ran into the side of a car.

He died in Royal Perth Hospital last night from head and internal injuries.

Police investigate triple stabbing in Perth