A 39-year-old woman was arrested Wednesday evening at the Tenderloin Recreation Center after she allegedly threatened the lives of everyone there, according to police.

Police said the woman was visiting the center with her children and got angry when she overheard a 9-year-old boy ask about her children’s father. The woman then allegedly said she was going to “kill everyone there,” including the boy and his mother, by either burning down the center or “shooting the place up.”

Police spokesperson Adam Lobsinger said on Thursday that a threat investigation was ongoing and the woman was still in custody.

No injuries were reported.