TORONTO -- An 11-year-old boy has died after being struck by a vehicle while riding a bicycle across a Highway 407 on-ramp in Markham Thursday afternoon.

The Ontario Provincial Police said the pre-teen child was riding a bike on Warden Avenue near the ramp to Highway 407 eastbound when he was struck.

The collision occurred just after 4 p.m.

The child was rushed to a trauma centre but later died in hospital, police tweeted early Friday morning.

The driver remained on scene.

Police are appealing for any possible witnesses to come forward.

Markham crash