London police investigating townhouse fire that sent 3 people to hospital in critical condition

LONDON, ONT. -- The city's major crimes unit is investigating the circumstances surrounding Saturday's fire in Northeast London that sent three people to hospital in critical condition.

Emergency crews were sent to a townhouse on Purser Street shortly after 11 a.m.

Two children and an adult were injured and rushed to hospital where they remain in critical condition.

The Office of the Ontario Fire Marshal has also been called to help with the investigation.

Police say more information will be released once it's available.

Witnesses are asked to contact police.

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  The Purser Street fire investigation in London, Ont. is seen on Sunday, Nov. 22, 2020. (Brent Lale / CTV News)

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  Purser Street fire investigation in London Ont. on Nov. 22, 2020. (Brent Lale/CTV London)

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  London Fire Dept. crews deal with a blaze on Purser Street in London Ont. on Nov 21, 2020. (Jordyn Read/CTV London)

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  London Fire Dept. crews deal with a blaze on Purser Street in London Ont. on Nov 21, 2020. (Jordyn Read/CTV London)