Zimbabwe's main opposition party has said President Robert Mugabe's government is using 'thuggish tactics' to prevent its leader from campaigning for a crunch presidential run-off vote.
The Movement for Democratic Change (MDC) said Morgan Tsvangirai is being barred from using the US-style campaign buses for the 27 June ballot.
Mr Tsvangirai has vowed to end Mr Mugabe's uninterrupted rule since 1980 in the election.
An MDC spokesman said police are holding the party's smaller bus.
He said the party cannot even move the bigger campaign bus any more, because each time they do drive it, armed police block them saying they are not allowed to use it.
'It is not the bus that is offending them but the message on the bus', he said.
Mr Tsvangirai unveiled the two buses with the slogan 'Morgan is the one' on Wednesday and took to a US-style road campaign.
The opposition leader has been detained five times over the course of some 10 days, although he was not charged on any of the occasions.
He has also faced major obstacles while trying to campaign, with police barring his party from holding a series of rallies.
Despite the setbacks, Mr Tsvangirai is said to be pressing ahead with his campaign.
Treason charges
The MDC number two, Tendai Biti, meanwhile appeared in court yesterday to face a treason charge, while police again briefly detained Mr Tsvangirai.
Mr Biti was arrested at Harare airport on Thursday within minutes of flying back to Zimbabwe from South Africa.
He faces charges for allegedly authoring a document which is said to have contained details of a plot to fix the election outcome.
He is also accused of 'communicating and publishing false information' by proclaiming victory for his party in the 29 March polls, ahead of official results.
The treason charge carries a potential death penalty.
The MDC claims more than 60 of its supporters have been killed since the first round of the election on 29 March in a campaign of intimidation.
Mr Mugabe has blamed the opposition for the increase in violence ahead of the vote, but the UN has said the president's supporters are responsible for the bulk of it.
