Tanzania has officially imposed a trade ban on food and agricultural products from Malawi, intensifying a diplomatic and economic standoff that began with trade restrictions on Tanzanian produce by the two nations. A similar ban has also been imposed on any agricultural produce from South Africa into the Tanzanian market. Tanzania's Minister of Agriculture Hussein Bashe announced the decision on Wednesday. This after both countries failed to lift their embargoes on Tanzanian goods like a consignment of bananas that was recently blocked at the borders. Malawi's Trade Ministry spokesperson Patrick Botha says they have not received official communication on the ban. George Mhango reports from Blantyre.