Six people were arrested in two separate incidents involving drugs in Mililani and Waialua on Thursday.

Two men, 41 and 46, and two women, 34 and 52, were arrested before 7 a.m. at 95-092 Waipuka St. in Mililani. Police booked the four individuals on suspicion of first-degree promotion of a detrimental drug and other offenses.

Later in the day, Narcotics/Vice Division officers arrested two men in connection with a marijuana growing operation in Waialua.

Police said neighbors had made several complaints about activity at the home.

Officers executed a search warrant at 68-11 Waialua Beach Road about 6 p.m. and arrested two men, 50 and 57, on suspicion of promoting marijuana and other drug offenses.

Officers confiscated more than a dozen marijuana plants.