Two teens riding on the same bike were struck by a truck in Manhattan Friday night killing one and leaving the other hospitalized, cops said.

The teens, aged 15 and 13, were heading west on East 14th Street when they were hit by the vehicle an excavation truck as it turned north onto First Avenue at about 9 p.m., according to the NYPD.

Both girls were taken to Bellevue Hospital, where the 15-year-old was pronounced dead, police said.

The younger girl was listed in stable condition.

Neither of the teens was wearing a helmet, according to witnesses.

Bystanders were “screaming at the truck, ‘stop, stop, stop” but the driver apparently couldn’t hear them, according to a witness.

The witness, who declined to give his name, said the aftermath of the collision was “dramatic” after he ran over to help.

“Two bystanders were trying to pull the girl on the right side out from under the wheel. Then the cops came and told them to stop because they could cause her more damage,” he said.

“The girl was bleeding. The blood was leaking towards the other side of the vehicle,” the witness said, adding he “saw the fire department come, doing CPR on the girl. Then the cops told everyone to walk away.”

Bdin Puangsawasdi, owner of Kati Thai restaurant on 14th Street, ran out to the intersection after his wife heard the “loud noise” nearby.

“I saw the truck driver come out and he was crying uncontrollably,” Puangsawasdi recalled to The Post.

He said cops shook the girl but she didn’t respond and pulled her body out from beneath the truck.

Puangsawasdi, 60, said firefighters gave the teen CPR “for about 10 minutes” but he “didn’t see any response and the blood was coming out from her ears.”

“A lot of blood was coming out.”

An electric Citibike appeared to be pinned beneath the truck’s tire.

“I feel sad and sorry for the little girl and her family to see her pass away in this tragic way,” the unnamed witness said.

“It should bring more awareness to look more. This could be prevented a hundred times,” he sighed. “We have to be more aware.”

The witness argued that “they should have a traffic cop” at the busy intersection “because clearly the truck did not see the two girls.”

Puangsawasdi said that he “knew something like this was gonna happen because this is a big intersection [with] a lot of reckless bicyclists.”

“I feel very bad. She has her full life ahead of her,” he said of the 15-year-old.

The truck driver works for Badger hydro-excavation.

A company spokesperson said Badger is “fully cooperating with the NYPD and other authorities as they investigate the circumstances surrounding the collision.”

“We are devastated by the loss of this young life and extend our heartfelt condolences to her family and friends,” the spokesperson said in a statement.

“Our thoughts are with all those impacted, and we are grateful to the emergency responders who provided care and assistance at the scene.”

Sources: NY Post