SEATTLE — Hundreds of people joined in annual May Day marches in Seattle and Yakima in support of workers’ rights and other causes.

By early Friday evening in Seattle, the focus shifted from an earlier march and rally in support workers and immigrant rights to a new march by a couple hundred black-clad protesters on the move in the city’s Capitol Hill neighborhood. Police on bicycles shadowed that march, which had been billed as an anti-capitalist gathering.

Police tweeted that many of the evening protesters were carrying wrenches.

By late afternoon, Seattle police said they had arrested one man for throwing a rock at a window.

The earlier Seattle march drew hundreds of people and ended with a rally at the downtown federal courthouse.

May Day in Seattle started with A Black Lives Matter gathering. Many of those marchers later joined the immigrant rights event.

In the central Washington city of Yakima, a crowd of at least 500 marchers called for increased attention to immigrant and worker rights.