The Calgary Police Sex Crimes Unit has charged a local man in connection with a violent sexual assault in a downtown parkade earlier this month.

Andy Dick Ntunaguza, 30, was arrested late Tuesday night,  December 29, 2015, and is charged with aggravated sexual assault, forcible confinement, and overcome resistance by choking .

At approximately 3:45 a.m., on Sunday, December 20, 2015, police received a call from security guards at a parkade in the 200 block of 6 Avenue S.W. The guards had come across a severely beaten woman who had been sexually assaulted in one of the parkade's stairwells. 

A woman in her 40s suffered serious injuries and was transported to hospital.

It's alleged the woman met her attacker around 3rd Street and 7 Avenue S.W., and agreed to go with him to meet a friend.

After meeting the friend, the group dispersed, with the suspect and victim continuing to the stairwell where the woman was beaten and sexually assaulted..

Ntunaguza is next scheduled to appear in Calgary Provincial Court on Monday, Jananuary 4, 2016.