Thousands of mourners braved sweltering heat on Monday to view the casket of George Floyd, whose death from a police officer kneeling on his neck ignited worldwide protests against mistreatment of African Americans and other minorities by U.S. law enforcement.

American flags fluttered along the route to the Fountain of Praise church in Houston, where Floyd grew up, as throngs of mourners wearing face coverings to prevent spread of the coronavirus formed a solemn procession to pay final respects.

Filing through a Houston church in two parallel lines, some people bowed their heads, others made the sign of the cross or raised a fist, as they reached Floyd's open casket. Fire officials said several people, apparently overcome by temperatures up to 93 degrees Fahrenheit (34 degrees Celsius) while waiting in line, were taken to local hospitals.