A woman in her 30s was fatally struck by an M train at the Elmhurst Avenue station in Queens this morning, according to police and the FDNY.

The incident occurred at around 8:57 a.m., according to the FDNY. The victim was pronounced dead at the scene.

One witness who was onboard the M train tells us the impact "felt like a really big jolt, everyone knew something had happened. Then there was screaming and crying." She added, that an "evacuation happened really quickly, woman was on a stretcher and bloodied but arms moving."

M train service was halted, but has "resumed with extensive delays," according to the MTA's website. Witness Saori Adams of Rego Park, tells us, "I was at the 63rd Street station when they announced "an unauthorized person" was on the tracks. That they cut power to all lines. The conductor said it would be at LEAST 30 more minutes. That was around 9:00 a.m."

Initially, witnesses said the unidentified victim might have been a child, though the NYPD has since confirmed that she was an adult.

It's unclear if the woman fell onto the tracks, was pushed, or wound up there of her own volition. We'll update with more information when it becomes available.

If someone you know exhibits warning signs of suicide: do not leave the person alone; remove any firearms, alcohol, drugs or sharp objects that could be used in a suicide attempt; and call the U.S. National Suicide Prevention Lifeline at 800-273-TALK (8255) or take the person to an emergency room or seek help from a medical or mental health professional.