Two officers of the French police special forces (Compagnie républicaine de sécurité, CRS) were slightly injured in Calais as a result of an attack by about 50 migrants armed with clubs and stones, BFMTV reported.
Earlier in the day, police special forces officers carried out an operation to demolish two illegal migrant camps in the area.
READ MORE: Refugees in Calais Face Inhumane Conditions, Aid Efforts Restricted — French NGO
Facing aggression, law enforcement officers working on the spot were forced to call for reinforcements. Tear gas was used against the instigators of the riots, but none of the migrants were detained.
Previously, Calais was home to Europe's largest migrant camp, the Calais "jungle." Despite the demolition of the camp in November 2016, migrants continue to arrive at the region in their pursuit of getting to the UK.