New York City police are looking for a man who allegedly shoved a woman’s head into a subway car in Manhattan, causing serious injuries to her spine.

Police said just after 6 a.m. on Sunday, a 35-year-old woman was walking on the southbound platform at the Lexington Avenue and 63rd Street subway station when an unknown man approached her from behind.

After approaching the woman, police said, the man shoved her head into a departing train.

The victim was taken to New York-Presbyterian, Weill Cornell Medical Center and listed in critical condition.

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She is being treated for lacerations to the head as well as spinal injuries.

The suspect took off and headed toward the Second Avenue exit.

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Police encourage anyone with information about the incident to call Crime Stoppers at 1-800-577-TIPS (8477), or for Spanish, 1-888-57-PISTA (74782).

Tips can also be left at crimestoppers.nypdonline.org or through the department’s Twitter @NYPDTips.

The incident comes as crime on the city's subways continue to gain attention amid the controversial death of Jordan Neely, who was reportedly acting erratically and threatening passengers on a subway train earlier this month before he was confronted and placed in a choke hold by Marine veteran Daniel Penny.

Penny was charged with second-degree manslaughter. If convicted, he faces up to 15 years in prison.

Portuguese authorities on Monday resumed a search for missing Madeleine McCann – a British girl who went missing as a toddler from a 2007 family vacation in Praia da Luz.

Madeleine was abducted from the family's ground-floor apartment in the coastal, southern Portuguese city on May 3, 2007, when she was 3 years old.

Over the next several days in Portugal's Algarve region, police will conduct "new searches… at the request of the German Authorities" and with the "presence of British authorities," Portugal's Judiciary Police said in a translated statement.

Police are expected to provide more information once it becomes available.

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Earlier on Monday, police were seen conducting a search near the Arade dam, about 31 miles from Praia da Luz.

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In 2020, German authorities named Christian Brueckner, 45, as a suspect in Madeleine's disappearance. Brueckner continues to deny his involvement in the case.

Brueckner spent many years in Portugal, including in Praia da Luz, around the time of Madeleine’s disappearance.

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Brueckner has been serving a seven-year sentence for raping a 72-year-old woman in 2005, Reuters reported. He was charged in 2022 for sex crimes against children that German authorities allege he committed in Portugal between 2000 and 2017.

Madeleine was born in May 2003 and would be turning 20 years old this month.

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On May 3, Madeleine's parents, Kate and Gerry McCann, said in a statement marking 16 years since their daughter's disappearance that they await a "breakthrough" in the case. 

"Thank you to everyone for your support — it really helps," they said in the statement posted to the "Official Find Madeleine Campaign" Facebook page.

Madeleine's missing persons case received renewed attention this year after a Polish woman shared her belief that she could be the missing girl on social media – an idea that was later debunked by a DNA test.

The Associated Press contributed to this report.