Windsor police are investigating an incident they are calling an attempted murder.

Police were called to a residence in the 900 block of Reedmere Road at approximately 4:30 a.m. Thursday.

An 85-year-old woman is in critical condition and a 54-year-old man is facing attempted murder charges.

Police say they are known to each other.

Windsor police spokesperson Sgt. Matt D'Asti says the accused faces a charge of attempted murder but has not yet appeared in court to be officially charged.

The Windsor Police Service's major crimes branch is investigating.

Police are canvassing the neighbourhood for witnesses and trying to track down the 911 caller.

No additional information is available at this time, police said in a media release.

Anyone with information is asked to contact the major crimes branch at 519-255-6700 ext. 4830.