Story highlights A 14-year-old boy and 15-year-old boy face sex assault and child pornography charges

Police say victim has been taunted online since attack

(CNN) Chicago police have arrested two juveniles in connection with a group sexual assault on a teenage girl that was broadcast on Facebook Live.

The teens -- a 14-year-old boy and a 15-year-old boy -- face charges including aggravated criminal sexual assault and manufacturing and disseminating child pornography, police said in a statement.

The 14-year-old, who was charged Saturday, was the "first of several juvenile offenders" from the March 19 assault to be arrested. Police have previously said they were looking for as many as six people who were shown in the video of the assault.

The 15-year-old turned himself into police and was accompanied by his mother, police spokesman Anthony Guglielmi tweeted Monday.

The suspects will be charged as juveniles, according to Guglielmi.

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