French prosecutors are expected to charge or release the CEO of the popular messaging app Telegram, Pavel Durov, after his police custody order expires on Wednesday.

Durov was detained Saturday at Le Bourget airport outside Paris as part of a judicial inquiry opened last month involving 12 alleged criminal violations. They include allegations that his platform is being used for selling child sexual abuse material and drug trafficking, fraud, abetting organized crime transactions and Telegram's refusal to share information or documents with investigators when required by law.