Two people were arrested and drugs worth an estimated $100,000 seized during a police operation in Otaki, north of Wellington, last night.

Police from the Wellington Covert Operations Group arrested a 21-year-old man and a 20-year-old woman, both from Wellington, as they drove through Otaki about 9pm.

Detective Senior Sergeant Warwick McKee said 2300 amphetamine pills, with a street value of about $100,000, were seized.

The man and the woman were arrested and charged possession of amphetamine for supply. Further charges of supplying amphetamine relating to more than $250,000 worth of the drug would be laid at their next court appearance, he said.

Both were kept in police custody and appeared in Wellington District Court today.

"This seizure should reassure the community that we are actively policing the distribution of amphetamine and we will continue to come down hard on those criminals that distribute these drugs that cause such harm to the community," Mr McKee said.

"Amphetamine is a common drug associated to the social party scene and is a very dangerous drug. To remove such a large amount from our streets is very pleasing."