A new report found that Instagram has become the number one hunting ground for child abusers, according to a new report.

On Friday, British-based charity the National Society for the Prevention of Cruelty to Children (NSPCC) combed through stats from 39 local police forces, reports Business Insider.

The charity found that the popular photo-based app was used by child groomers to communicate with minors 428 times from April to September 2018, more than triple the amount of interactions under the same time time frame in 2017.

In other words, almost a quarter of the 1,944 offenses involving child groomers happened on Instagram.

Police also combed through which apps were used by child groomers across 1,317 cases — finding similar results to the NSPCC.

Almost a third (32 percent) of the predatory interactions occurred on Instagram, followed by Facebook (23 percent) and Snapchat (14 percent).

“It is hugely concerning to see the sharp spike in grooming offenses on Instagram, and it is vital that the platform designs basic protection more carefully into the service it offers young people,” NSPCC’s chief executive Peter Wanless told Business Insider.

“We cannot wait for the next tragedy before tech companies are made to act.”

When researchers broke down the demographics, they found that girls ages 12 to 15 were most likely to be targeted by groomers on Instagram. The platform’s policy states that users have to be at least 13 years old to use it.

An Instagram spokesperson told Business Insider: “Keeping young people safe on our platforms is our top priority and child exploitation of any kind is not allowed. We use advanced technology and work closely with the police and CEOP to aggressively fight this type of content and protect young people.”