5 US police officers injured in May day violence in seattle

Five police officers were injured and nine people arrested in a May Day protest that turned violence in the U.S. city of Seattle on Sunday. 
One police officer was burned by a Molotov cocktail, another received a cut in the face and a third was bitten, police said. The violence broke out late in the day after an earlier peaceful march to mark International Worker's Day. 
"It is unfortunate and deeply regrettable that in a city that goes to incredible lengths to respect First Amendment rights, there are some who disregard our values and engage in senseless acts of violence and property destruction," Seattle Mayor Ed Murray said. "My thoughts are with the officers who were injured." The United States is one of the few countries in the world that does not mark May 1 as a day of support for working people.  May Day has been celebrated as worker's day since 1886 to commemorate a riot in which workers were killed by police in Haymarket Square in Chicago. 
Though the event took place in the US, May Day is a public holiday around the world except in the United States, which marks Labor Day in September instead. 
Protests against economic inequality in the United States have been on the rise in recent years.

Source: QNA