Police are investigating a man and a woman after officers spotted them inside a vehicle stolen in the robbery of an Aiea Loop Trail hiker.

The suspects, ages 26 and 43, were spotted at about 7:45 a.m. Monday at the intersection of Meheula Parkway and Makaimoimo Street in Mililani in a Kia Sportage belonging to a 54-year-old female hiker. The male suspect who stole the vehicle in the June 19 robbery remains at large.

Police said the robber, clad in camouflage pants, brandished a handgun and stole a cellphone and car keys from the hiker, who was about a quarter-mile to a half-mile on the trail from the trailhead.

The suspect fled in the woman’s Kia Sportage. Police said the woman was not injured.

The female suspect spotted inside the vehicle in Mililani on Monday was arrested on suspicion of driving without a license, third-degree promotion of a dangerous drug and unauthorized control of a propelled vehicle.

Police arrested the male suspect inside the vehicle on suspicion of second-degree unauthorized entry of a motor vehicle, third-degree promotion of a dangerous drug, resisting arrest and a warrant.

Evidence recovered from the stolen vehicle has provided some leads to the robbery suspect. Police declined to disclose details of the evidence.