QUEENS, N.Y. - Police are investigating the deadly stabbing of a pregnant woman in Queens over the weekend.

Jennifer Irigoyen was found just after 1 a.m. Sunday inside the lobby of an apartment building located at 60-80 Myrtle Avenue in Ridgewood.

She had been stabbed in the neck and torso.

Sources say the 35-year-old was about five months pregnant.

Her unborn baby did not survive.

Sources tell NY1 they saw a man in a hooded sweatshirt running away from the scene.

Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-8477, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com.