A 15-year-old boy was killed and two others were injured when their motorcycle skidded and hit a road divider on the newly-constructed Bandra Worli Sealink-BKC flyover here on Monday, police said.

The deceased was riding the motorcycle and two of his friends- all minors- were riding pillion at the time of the accident in the wee hours, an official said, adding that none of them was wearing a helmet.