A mugger punched a 46-year-old man in the face and snatched his cell phone inside a Midtown train station early Monday, cops said.
The victim and suspect were arguing on board a southbound No. 1 train pulling into the 59th St-Columbus Circle station just before 5 a.m., police said.
When the two men got off the train, the assailant punched the victim in the face and grabbed his phone, authorities said.
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The robber took off and was still being sought later in the morning.
The victim was not hospitalized, police said.