Police have seized illicit drugs, firearm, ammunition and cash on Tuesday.
A total of 228.82 grams of cannabis, a .22 rifle and 587 live bullets had been seized.
The Drug Enforcement Taskforce arrested four people from three different locations in Tongatapu.
The arrestees included a 33-year-old man from Tofoa, a 40-year-old man from Fua’amotu, a 23-year-old woman from Kolofo’ou and a 33-year-old man from Vaini.
“All four suspects have been charged accordingly for possession of illicit drugs and for possession of firearm and ammunition without licence. They are remanded in police custody to appear in court at a later date,” a statement said.
“Police are concerned with the significant amount of firearms and ammunition that have been smuggled into the country and the risks they pose to community safety. We therefore urge members of the public to come forward with any information that will help with police investigations.”