South African dock workers are refusing to unload ships carrying goods from Israel in solidarity with the Palestinians, a union leader said Wednesday. Randall Howard, general secretary of the South African Transport and Allied Workers Union, said it appeared a ship carrying goods from Israel was nearing Durban's port. If once the ship docks its cargo is determined to be Israeli, he said, union workers won't unload it. "We will make that contribution," he said. "The historic and heroic struggle of the Palestinian people for self-determination ... is a struggle that SATAWU supports." Last year, South African dock and freight workers refused to unload a ship carrying weapons for Zimbabwe to protest Zimbabwean President Robert Mugabe's rule of the neighboring country. In the case of Israeli goods, Howard said, it did not matter whether they were weapons of vegetables. "If it's an Israeli product, we're going to boycott it, plain and simple," he said.