A New York woman was reportedly killed on Wednesday during an altercation involving her 12-year-old daughter and about 20 women.

Police said Jennira Roundtree, 43, was stabbed twice in the chest and slashed once in her stomach outside her Staten Island home. The knife was recovered from the scene, according to the New York Daily News.

Sources told the New York Post that social media was at the center of the deadly altercation. The 20 attackers’ ages ranged in age from young teens to mid-20s.

A neighbor revealed to the New York Daily News that a group of girls started a fight with Roundtree’s 12-year-old daughter, who called an older sister for help. The neighbor said Roundtree intervened before the older sister got there.

“And by the time the rest of them came she had collapsed on the floor,” a friend told WABC.

Sources told the New York Post that Roundtree was found bloody on top of a broken umbrella, which was apparently used during the fatal fight.

No arrests have been made.

[Feature Photo: Facebook]