More than 135kg of crystal methylamphetamine or “ice” worth about $130 million, has been seized during raids in Melbourne.

The stash was found packed into four suitcases in an inner-city apartment on Tuesday afternoon, in a joint operation between the Australian Federal Police (AFP) and the Australian Crime Commission (ACC).

Four Taiwanese nationals, aged 20 to 29, are due to front Melbourne Magistrates Court on Wednesday charged with a range of drug offences.

Police were still investigating if the drugs came from overseas or were manufactured in Australia, AFP commander Bruce Giles told reporters on Wednesday.

He said he could not yet comment on whether the drugs were linked to an outlaw motorcycle club.

Police believe the quantity of drugs seized would have equalled about 1.3 million street deals.

ACC national manager of investigations Richard Grant said the raids occurred after intelligence was provided through the Eligo national task force, which aims to quash money laundering.

“Crystal methylamphetamine is a nasty, insidious drug and it’s considered the most dangerous illicit drug in operation today,” he said.