SYDNEY: An Australian warship has made its second large drugs bust in the Arabian Sea within a week, seizing 3.5 tonnes of hashish with an estimated street value of US$142 million, officials said Friday. It followed HMAS Warramunga making an eight-tonne hashish haul in late December during manoeuvres in the area as part of the Combined Maritime Forces (CMF) naval partnership. The latest seizure occurred on January 3 with support from a British Royal Navy helicopter, with crew from the frigate boarding a suspect vessel in international waters. HMAS Warramunga commanding officer Dugald Clelland said it was a complex night operation. ?The Royal Navy helicopter was able to cue us onto a suspect vessel, which Warramunga´s boarding party searched in challenging conditions,? he said.