Police: Man raped woman twice

Police are searching for a man who allegedly raped a woman twice early Saturday morning.
Authorities say a 28-year-old woman was leaving Riverdale Market at around 2:30 a.m. when a man holding a knife grabbed her from behind.
They say he forced her to walk to 6155 Broadway, where he raped her.
Officials say the suspect then told the victim to walk down the street to 6065 Broadway, where he raped her again.
The woman was taken to North Central Bronx Hospital.
Police say the suspect is about 25 years old with a mohawk and earring.