The women, aged 31 and 30, were arrested in February on the eastern island of Lombok and remain in custody, police said.

'The two women were arrested in February while they were smoking cannabis,' Central Lombok police chief Suryanto told AFP.

He said the Canadians - kindergarten teachers on holiday - were in possession of 3.6 grams of cannabis when they were arrested in their hotel room.

Police had followed the women for several days before making the arrest.

'They will appear in court soon,' Mr Suryanto said.

Indonesia categorises marijuana as a dangerous substance on the same level as heroin.

A spokesman at the Canadian embassy in Jakarta said she could not comment on the arrests. -- AFP