Former Transportation Secretary Pete Buttigieg’s children were taken away from him after a tip from someone who turned out to be “mentally unstable,” according to police records.

Last month, the 44-year-old’s four-year-old twins, Penelope and Gus, were separated from him and his husband after an anonymous caller told Child Protective Services that he had committed “unspeakable violent crimes” and warned that the children could still be at risk.

It has now transpired that authorities later deemed the source possibly untrustworthy, due to her potential mental instability.