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MEMPHIS, Tenn. — Nine people were arrested in Memphis Thursday while protesting to have the minimum wage raised.

The protestors were arrested for blocking traffic.

Thursday morning several people claiming to be protestors called the WREG-TV newsroom to say they were planning to get arrested and we should be there to record it.

Protestors told our team on the scene they were bused in from Little Rock and St. Louis.

The Service Employees International Union is behind the protests.

A police officer was injured while trying to remove protestors from the street and was taken to the hospital in non-critical condition.

Similar protests reportedly took place in a total of 150 cities.

Demonstrators are demanding a minimum wage of at least $15 an hour.