LOWELL — A 15-year-old boy was allegedly targeted while riding his bike on the sidewalk Friday afternoon, as the driver of a pickup truck intentionally struck him, resulting in severe injuries, according to police.

The boy is in serious but stable condition after being struck by a pickup truck in a hit-and-run crash on Lawrence Street at about 2:30 p.m. Police had not made an arrest as of 8:30 p.m.

According to police, the pickup truck was traveling in the outbound lane of Lawrence Street, away from downtown Lowell. Meanwhile, the boy was biking in a sidewalk on the opposite side of the street.

The driver crossed over to the opposite side of the road and struck the boy, police said.

“We believe this was an intentional act,” said Lowell Police Capt. Tim Crowley. “We believe they knew each other. We’re not sure the relationship, but this was not a random act.”

The white Chevrolet pickup hit the bicyclist near Cavaleiro’s Restaurant, police said.

Police canvassed the area and found the bike on Bolt Street. It had been dragged by the truck for about a mile.

The boy was flown by medical helicopter from Lowell General Hospital to Beth Israel Deaconess Medical Center in Boston.

Police then found the white pickup on the property of Greener Landscaping, which is at the end of Bolt Street.

No one picked up the phone at Greener Landscaping at 8 p.m. on Friday.

The incident is being investigated by State Police assigned to the Middlesex District Attorney’s Office and the Lowell Police Department.

“We’re talking to witnesses and following up a whole bunch of leads,” Crowley said. “Hopefully some of them will pan out.”

Anyone with information on this incident should contact Lowell Police at 978-937-3200.

Follow Rick Sobey on Twitter and Tout @rsobeyLSun.