The editor of an independent Zimbabwean newspaper has been arrested, and the country's largest farm union said 40,000 farmworkers have been displaced in postelection violence.
Police took Davison Maruziva, editor of the Standard newspaper, from the paper's office, the publisher said.
New York-based Human Rights Watch said prominent human rights lawyer Harrison Nkomo was also arrested in Harare, the capital. Police could not be reached for comment.
Opposition party supporters are increasingly under attack.
Militia groups have driven 40,000 workers off farms in an effort to prevent them from voting in a runoff, according to a report released in Johannesburg, South Africa, by the General Agriculture and Plantation Workers Union of Zimbabwe.