A pickup truck hit a 14-year-old bicyclist at the intersection of Conklin Terrace and Newtown Lane in East Hampton Village just after noon last Thursday and drove away. The teenager, Adrian Auguilla of East Hampton, told police he was eastbound on the Conklin Terrace crosswalk when an older maroon truck pulled ahead of him at the Newtown Lane stop sign and sideswiped him, knocking him off the bike. The truck continued west down Newtown Lane, he said.There were no witnesses. The boy, who was wearing a helmet, walked back to his house after the incident, then went to the East Hampton Health Care Center. He had a contusion on his head, scrapes on his leg, and several small cuts. A Montauk ambulance squad took him to Southampton Hospital, where he was released after treatment for leg and arm wounds.Anyone with information about the accident has been asked to call police at 537-7575; all calls will be kept confidential.In Montauk last Thursday, East Hampton Town police responded to an 8 a.m. accident on South Delphi Street, just north of South Elihu Place. Cecilia Renee Blowe of Wainscott, 19, told police she was southbound on South Delphi when she glanced down at the climate control unit and hit a parked pickup truck. Rafael Vargas, 48, of Montauk was in the 2002 Ford pickup at the time.The airbags in Ms. Blowe’s 2011 Chevrolet deployed, and she suffered eye pain and minor bleeding. She was taken to the hospital by Montauk ambulance for treatment. Mr. Vargas was not hurt.On Friday at around 6:30 p.m., at the tricky intersection of Cedar Street and Stephen Hand’s Path in East Hampton, a motorcyclist was thrown off his bike after a car allegedly ran a stop sign. Basilio Parada, 55, of East Hampton was westbound on Cedar, he told police, and had the right of way when a 2013 Nissan heading north on Stephen Hand’s Path went through the sign. The motorcycle hit the back of the Nissan and Mr. Parada suffered lower arm pain and minor bleeding. He was taken to the hospital by the East Hampton ambulance squad.The driver of the Nissan, 18-year-old Valeriya Yugova of Sag Harbor, who had a learner’s permit but not yet a license, was unhurt. She was charged with unlicensed driving and failure to yield at a stop sign. Another accident involving a bicycle rider happened on Saturday afternoon at the intersection of Edgemere Street and South Euclid Avenue in Montauk. At around 2:30, Victor P. Meskill of Montauk, 82, told police he was traveling west on South Euclid Avenue, crossing the intersection of Edgemere Street, but was stopped with the vehicle’s rear in the intersection, waiting for traffic in front to clear. The bicyclist, Robert E. Pluhowski, 64, of Old Bridge, N.J., tried to go around the stopped vehicle but failed, striking its rear right quarter panel.Mr. Pluhowski was wearing a helmet but had minor scrapes and a possible concussion. A Montauk ambulance took him to the hospital for treatment.Also on Saturday, at around 2:45 p.m., a three-car accident occurred on Napeague, just east of Dolphin Drive.Frances Clark of Shirley, 54, was westbound when, she told police, the car behind her rear-ended her 2008 Honda. Its driver, Franklin P. Campoverde, 29, of East Hampton, told police he’d tried to stop, but the brakes in his 2005 Jeep were not working well and he could not avoid the collision.After rear-ending the Honda, he veered across Route 27 and struck a parked car on the side of the road. Its owner, Tracy Piazza, was on the scene, according to police, and her husband saw the accident from a restaurant across the highway.Mr. Campoverde was charged with unlicensed driving.