In a video recorded by Denee Harris, an officer can be heard over the loudspeaker saying, "Hands up! Put your hands up. Over your head! Pretend like we're going to shoot you."
"Why would he say that?" Harris asked in the video.
RELATED: Hearing begins for Alameda County deputies accused of excessive force
Another officer confiscated one of the passenger's crutches, throwing them on the ground, and an officer can be seen driving the vehicle away from the scene.
Harris is heard commenting in the video, and later told Storyful News, "I was so scared. I didn't know how it was going to end."
The reason for the traffic stop and detentions were not immediately clear.
HPD told Eyewitness News that they are aware of the video and are looking into the video and circumstances of it.