ALEXANDRIA, Va. (WUSA9) -- Alexandria Police are investigating the death of a female infant, who taken to the hospital Monday, according to authorities.

Officers responded to the 300 block of Pendleton Street, along with the Fire Department and medics for the report of an unresponsive infant. The infant was taken to the hospital.

She died Saturday, authorities said. The infant was under 6-months-old, police said. An autopsy will be performed to determine the cause and manner of her death. The infant did not appear to suffer any traumatic injuries, police said.

Anyone with information about this incident is asked to call Sergeant Michael Kochis at 703.746.6285.

ALEXANDRIA, Va. (WUSA9) -- Two DC teenagers were arrested on Monday for a series of burglaries in the City of Alexandria, Alexandria Police said.

Police arrested a 16-year-old male and a 17-year-old male originally for a burglary that happened in the 300 block of S. Lee Street. Authorities learned later the the two teenagers were responsible for at least four other residential burglaries in Alexandria dating back to September, police said.

Both teenagers were charged with larceny with the intent to distribute, possession of burglarious tools, and conspiracy to commit burglary. One teenager was charged with four counts of burglary and the other was charged with five counts, according to authorities. Other charges may be pending as the investigation continues, police said.

The teenagers entered all of the homes through unlocked doors and windows, authorities said.

ALEXANDRIA, Va. (WUSA9) -- An Alexandria sheriff's deputy was sentenced to two and a half years in prison Thursday for sexually assaulting an inmate at the detention center where he was working.

Bryant Duane Pegues, 53, of Oxon Hill, Md., pleaded guilty to one felony count of carnal knowledge of an inmate by a corrections officer for the May 27 assault.

Pegues was supervising the mental health unit at the Alexandria Adult Detention Center, which housed female inmates, when it happened. An inmate reported that Pegues entered her cell, touched her private parts and had sex with her in the cell, officials said.