A man has been arrested and a woman is sought after an explosion last week in an east end residential building.
Toronto Police received several 911 calls around 5:11 p.m. on Nov. 27 for an explosion in the area of Woodbine and Queensdale Aves.
Investigators said a fire broke out after the explosion, prompting the building to be evacuated.
Two children suffered major burns and remain in serious condition in hospital. Some residents suffered minor injuries and were treated at the scene, police said.
Investigators allege two tenants in the building were using chemicals to make illicit drugs.
Johnathan Nicholson, 38, of Toronto, faces nine charges, including two counts of arson causing bodily harm, two counts of criminal negligence causing bodily harm, arson disregard for human life, arson causing property and altering cannabis with organic solvent.

His bail hearing took place Nov. 28. But he remains in custody.
Investigators want to track down Cassandra Nicholson, 30, of Toronto, and are asking for the public’s help.
Nicholson is wanted for the same nine charges.
The suspect is described as 5-foot-6, 160 pounds, with blue eyes and red hair. She may be driving a grey 2007 GMC Envoy SUV with Ontario license plate CMJS655.
Anyone with information regarding Nicholson’s whereabouts is asked to call police at 416-808-5500 or Crime Stoppers anonymously at 1-800-222-TIPS (8477).
jyuen@postmedia.com