Over 1,000 health professionals sign a letter saying, Don't shut down protests using coronavirus concerns as an excuse

Protesters march Thursday, June 4, 2020, in San Diego. Protests continue to be held in U.S. cities, sparked by the death of George Floyd, a black man who died after being restrained by Minneapolis police officers on May 25.

(CNN)A group of health and medical colleagues has penned an open letter to express their concern that protests around the United States could be shut down under the guise of coronavirus health concerns.

The letter -- which went on to draw more than 1,200 signatures -- focuses on techniques to reduce harm to people protesting racial injustice.