The raid came as hundreds of clubbers were arriving for the start of the venue’s “Polysexual” night, which had been due to run until 2pm today.

According to news reports

The dramatic raid was triggered by a command of “attack, attack” at just after 11.25pm. Scores of officers then burst in through the front door while others covered the rear.

The raid came as hundreds of clubbers were arriving for the start of the venue’s “Polysexual” night, which had been due to run until 2pm Sunday.

It follows a two-month covert intelligence operation that identified the alleged dealing of class A drugs, thought to include cocaine and ecstasy. Police intelligence suggested the alleged dealing was taking place inside and around the female toilets.

Within an hour of the raid, police made five arrests. Anyone found in possession was likely to be given a caution. Earlier, in connection with the raid, a 29-year-old man had been arrested in Harrow, north-west London, on suspicion of possession with intent to supply.