Angry shoppers are boycotting Tyson Foods products as the $53-million meat firm shutters plants in Iowa and elsewhere while hiring thousands of asylum seekers at job fairs in New York.

Campaigners are urging consumers to stop buying Tyson products amid its wave of closures of poultry- and meat-processing plants across Iowa, Virginia, Arkansas, Indiana, and Missouri.

They point to Tyson's efforts to hire thousands of asylum seekers in New York, offering $16.50-an-hour wages and free immigration lawyers, accusing the firm of ditching US-born workers for cheaper migrant labor.

America First Legal, a conservative action group launched by former Trump administration officials, warned Tyson that it could be breaking the law by favoring foreign-born workers over Americans.