Niagara Regional Police are investigating an explosion at a residence in the area of Fourth Avenue and Morrison Street Friday.

At approximately 10 a.m., emergency services personnel responded to a residence on Fourth Avenue for a fire.

Members of the Niagara Falls Fire Department were able to extinguish the fire in the home.

The fire caused an estimated $60,000 in damage, said Niagara Falls fire Chief Jim Boutilier.

Police said there had been an ongoing dispute between two males in the Fourth Avenue house.

Police said prior to leaving the residence, a 34-year-old man is believed to have intentionally detonated a commercial grade pyrotechnic, resulting in the fire.

Police said the man and a woman fled the scene prior to the arrival of police. The woman's involvement in the matter is still under investigation.

The remaining four people in the residence were able to escape the structure.

Paramedics from Niagara Emergency Medical Services treated four people for smoke inhalation at the scene. One person was taken to a local hospital as a precaution.

Police said the suspect man and women were last seen pushing a wheel barrow full of miscellaneous belongings on Huron Street in Niagara Falls. They are believed to have had a pit bull dog with them.

Tyler Sterling Rivard, 34, of Niagara Falls is wanted by police for the alleged offences of using explosives and arson, disregard for human life.

Police said the scene is being held for further investigation by detectives from the Forensic Services Unit and investigators from the Office of the Fire Marshal.

Police ask anyone with information about this incident to call detectives at 905-688-4111, ext. 9408.