Sources say a woman who police believe tried to kidnap a baby in Chelsea is being questioned by authorities.
Sources say 46-year-old Tara Anne McDonald has not been charged yet.
Investigators say McDonald approached a nanny on the sidewalk on Eighth Avenue near 17th Street at around 3:45 p.m. Thursday.
According to investigators, McDonald started talking to the nanny and then started pushing the stroller away.
A UPS driver who was nearby stepped in to help along with other bystanders who stopped her.
She then ran south down Eighth Avenue.
The driver, William Marte, said he was sitting in his truck having lunch when he saw McDonald arguing with the nanny.
He got out and told her to stop, and he said that's when McDonald left.
The father of two said in a statement he only did what any one else would.
Officials say the 8-month-old baby boy never left the nanny's sight and was unharmed.
People who spoke with NY1 in the area say it's a reminder to always have your guard up.
"You always want to be either holding hands or have your hands on the stroller, whatever you're doing," said one Chelsea resident.
"Even though we live in a good neighborhood and what not, anything can happen, and it's crazy because I'm like. 'Oh my gosh, that could have been my kid,'" said another Chelsea resident.
McDonald is described as being around 5 feet, 9 inches tall, weighing 150 pounds.
She was last seen wearing a beige hat and beige overcoat.
Sources say she has seven prior arrests relating to kidnapping, plus additional sealed arrests.
Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-TIPS, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com.