The man arrested in one of two alleged sexual assaults of women who attended Day One of the Budweiser Made in America festival in Philadelphia has been identified as Ankara Demir, police said.

Demir was arrested in connection with an attack police said took place in his home on the 2400 block of Arch Street at 12:10 a.m. Sunday, a short walk from the Benjamin Franklin Parkway, where the concert continues until 11 p.m. Sunday.

According to police, a 22-year-old woman met Demir, 26, at the concert and asked to use his cellphone. Demir told the woman she could use his house phone because he lived nearby. The woman entered Demir's residence, where he sexually assaulted her, police said.

The woman ran outside the house and called 911. Officers arrested Demir at the scene and charged him with rape, sexual assault, and related charges.

In the first alleged attack, a 24-year-old woman was sexually assaulted about 6:30 p.m. Saturday when she got into a vehicle near 22d and Spring Garden Streets that she mistook for a taxi. There was a man in the back seat who sexually assaulted her while another man drove the vehicle, police said.

The man in the backseat forced the woman out of the vehicle at 10th and Catharine Streets after assaulting her and robbing her of $41, police said. The victim called police at that location in the Bella Vista section of South Philadelphia.

Both men were described as being teenagers or in their early 20s, police said. The investigation is ongoing in that case.

Contact Sulaiman Abdur-Rahman at 215-854-4851, SAbdur-Rahman@phillynews.com or on Twitter @sabdurr.