LONDON — A 15-year-old boy has died after colliding with a bus in northwest London on Thursday.

See also: How to avoid buying a hoverboard that might explode

Metropolitan Police confirmed to Mashable on Friday that the teen, who has not yet been identified, was on a hoverboard at the time of the incident in Alperton. He was pronounced dead at the scene.

Sad to hear about the death of a 15-year-old boy in Alperton last night who collided with a bus whilst riding a hoverboard — Cllr James Denselow (@cllrjdenselow) December 11, 2015

More details about the circumstances surrounding the incident are not yet clear, but officers from the Serious Collision Investigation Unit are investigating.

Hoverboards are one of the most sought-after items in the UK this Christmas, but they're illegal to use on public roads and pavements in the country because they're not licensed or registered, Met Police said in October.

Using them on pavements contravenes section 72 of the Highway Act 1835 in England and Wales and section 129(5) of the Roads Act 1984 in Scotland.

Earlier this month, authorities in Britain said they had seized more than 15,000 hoverboards that didn't pass basic safety checks.