UK men arrested after record Qld MDMA haul

Queensland police say their record-breaking MDMA seizure has helped prevent up to 12 million ecstasy tablets from reaching Australian streets.

Police won't reveal where or when they seized 766 kilograms of the powder, but say the drugs are the highest purity ever recorded in Queensland and have a potential street value of $90 million.

The seizure is the largest of its kind in Queensland and the third largest in Australia.

Police believe the drug supply chain was being managed by a syndicate based in the United Kingdom

Two British men, aged 51 and 40, have been arrested in Queensland and charged with drug possession and supply.

Another two UK citizens - a 60-year-old man and a 49-year-old man - have also been arrested in New Zealand after authorities in Auckland seized 200kg of the drug ice destined for their local market through the syndicate.

A man from Loganlea and a NSW woman have also been charged, with further arrests likely.

The seizure represents approximately seven per cent of the 1.1 tonnes of ecstasy consumed annually in Australia.