Police are looking for a man they say attacked and robbed a blind woman inside her Manhattan apartment building.

It happened around 2:30 p.m. Sunday on Fort Washington Avenue near 165th street in Washington Heights.

Police say 59-year old Evelina Calcano was walking into her building when the man punched her repeatedly and pulled a gold chain off her neck.

"I went downstairs to the lobby and I peeked to make sure that it wasn't something like really violent, that I was, should call 911, but I saw that it was like a man and a woman, like having, he was like assaulting her," said neighbor Melinda Rodriguez.

"I saw him with the chain in his hand and he said, 'No, this is my chain, there's a, I was helping her,'" Rodriguez said. "She was yelling and crying still, so at that very moment, he ran out the building."

Investigators say the chain is worth $150.

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.