The OPP dive team was searching Detroit River Thursday morning related to the Cassandra Kaake murder investigation.
Windsor police say the dive team was searching the river for evidence.
Kaake, 31, was seven months pregnant when she was found dead after a fire call to her Benjamin Avenue home on Dec. 11, 2014.
Matthew Brush, 26, from LaSalle, is charged with first degree murder, arson with disregard for human life, arson causing property damage, possession of incendiary material for arson, break and enter, and indecent interference with a dead body.
In the days following her death, police said the fire at the duplex was intentionally set and Kaake died as a result of blood loss due to severe trauma to her body.
Divers were along the shore in the water off Riverside Drive near Caesars Windsor on Thursday.
Police won't say what they are looking for specifically because they don't want to jeopardize the investigation.
