Tucson police used pepper spray to help disperse some of the more than 100 people protesting the detention of two immigrants who had been detained after a traffic stop.
Police Sgt. Maria Hawke says the impromptu protest occurred when a crowd gathered at the scene Tuesday evening.
She said police pulled over a car because it had no license plate light and then called the Border Patrol when officers learned the occupants were in the county illegally.
According to Hawke, officers learned of the status of the driver and passenger after they told police they had no driver's licenses or other identification.
The Border Patrol agents took both into custody, and the crowd dispersed.
Police Chief Roberto Villasenor scheduled a Wednesday afternoon news conference on the incident.
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