A woman accused of stabbing two sisters during a street brawl in Brewerytown this week has been charged with murder.

Police say 19-year-old Tianna Thomas remains at large, along with seven women who allegedly took part in the confrontation that broke out along the 1500 block of North 29th Street around 11:30 p.m. Monday and was captured on video.

Authorities say Thomas repeatedly stabbed 23-year-old Shawntae Garrison and 28-year-old Tayshawn Layton. Garrison, who was stabbed multiple times in the chest, back, and legs, died around midnight, while Layton, who “sustained lacerations” to her lip, forehead, and wrist, remained hospitalized Thursday in critical condition.

A motive for the stabbings remains under investigation. Authorities say Thomas lived across the street from the sisters.

Besides the murder count, Thomas is also charged with attempted murder, aggravated assault and related charges. The other seven women could face conspiracy charges and/or more serious counts.