Toronto police have charged a female motorcycle passenger who allegedly fled the hit-and-run crash that left 4-year-old Raduil Chowdhury in hospital with life-threatening injuries over the weekend.

Chowdhury was taken to the Hospital for Sick Children with critical injuries to his upper body and head after police said he entered the road and was hit by a motorcycle on Victoria Park Ave. at Adair Rd., north of St. Clair Ave. E., Sunday afternoon.

The male driver of the motorcycle and his female passenger both fled after the crash, police said.

There is no crosswalk or traffic stop on Victoria Park Ave. at Adair Rd. and it is not clear how Chowdhury, who was with his mother at the time, got onto the road.

The boy is recovering in hospital with serious injuries, including possible brain damage, according to the latest update from a GoFundMe campaign that has been launched for the Chowdhury family.

Police had previously arrested and charged the alleged motorcycle driver, Darren Dawson, 31.

He appeared in court Tuesday on charges of leaving an accident where bodily harm was caused and driving without insurance or a proper license. He was released on $25,000 bail and his 2016 Harley Davidson Road Glide motorcycle has been seized.

Dawson has not been charged with any offences related to the way he was driving.

Breanne Lynn Maclellan, 32, of Markham, turned herself in to police Thursday morning, according to a news release.

She has been charged with being a party to the offence of leaving the scene of an accident causing bodily harm.

She was scheduled to appear in court on Thursday at 10 a.m.

At the time of Dawson’s arrest, police said they would not release his name in order to “protect the integrity of the investigation.”

Maple Leafs Sports and Entertainment announced Tuesday that they were auctioning off two tickets to the opening game of the NBA Finals on Thursday to support Chowdhury’s family.

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His father, Ruhul Chowdhury, is an MLSE employee, the Raptors said in a tweet.

Traffic Services Investigators are asking for anyone with CCTV, dash camera video or other information about this investigation to contact police at 416-808-1900, Crime Stoppers anonymously at 416-222-TIPS (8477).

With files from Temur Durrani, Alyshah Hasham and Ilya Bañares.