More than 110 pounds of seized cocaine worth about 2.5 million euros ($3.35 million) has disappeared from police headquarters in Paris, prompting officials to launch an investigation. All theories, including whether the drugs were stolen -- which would be a first for Paris police headquarters -- are being looked into.

The missing cocaine was stored in a room with an armored door in Paris police headquarters -- the French equivalent of Scotland Yard, English-language broadcaster France 24 reported, citing French-language newspaper Le Parisien.

“This investigations will look into the whether applicable rules were followed for the management of evidence in the offices of this brigade and in general at 36 quai des Orfèvres,” the Prefecture de Police said in a statement.

“All hypotheses are on the table,” a source told Agence France-Presse, adding that if the cocaine was stolen, it would mark the first time Paris police headquarters had a theft.

The missing cocaine is the second controversy to surround Paris police headquarters in recent months. In April, a 34-year-old Canadian woman alleged four cops raped her inside the headquarters, according to France 24. One of the accused cops claimed the sex was consensual.