Mugabe wins poll, amid claims of rigging HARARE, March 13 (AFP) - Zimbabwe's long-time ruler Robert Mugabe swept to victory Wednesday in Presidential elections in a vote that challenger Morgan Tsvangirai declared was rigged and unacceptable. Registrar General Tobaiwa Mudede announced on state television that Mugabe was re-elected with 1,685,212 votes against 1,258,758 votes for Tsvangirai, leader of the Movement for Democratic Change (MDC). `I ... therefore declare Robert Mugabe the winner for the office of the presidency of Zimbabwe,' Mudede said. Observers had warned that should the outcome be seen to have been rigged, violence could explode across the volatile southern African nation. As the results were being announced, about 100 heavily armed soldiers moved into Zimbabwe's second city Bulawayao and surrounded the MDC offices, where opposition officials had gathered. Defence Minister Sydney Sekeramayi has put security forces on the highest level of alert, according to state media. Police roadblocks were seen on the main roads leading to central Harare, security forces were patrolling the city and six police officers were stationed outside MDC headquarters. Tsvangirai rejected Mugabe's election victory out of hand. `The election was massively rigged,' he told a packed press conference. `We therefore as MDC do not accept this result.' Foreign governments all but dismissed the outcome even before it was announced, threatening to leave Mugabe internationally isolated despite his victory. British Foreign Secretary Jack Straw cited `pretty strong' evidence that Mugabe has `stolen' Zimbabwe's vote, an outcome he said would have `enormous implications for the nature of our relationship with Zimbabwe.' US State Department spokeswoman Lynn Cassel said: `While we must wait for the final results, it is abundantly clear that this was a seriously flawed election.' The MDC leadership was due to meet later Wednesday to discuss the poll results, and Tsvangirai was due to address a media conference afterwards. `We have a national executive meeting ... where we will be looking at the figures and give the reaction of the party,' said David Coltart, an MDC MP. `To put it mildly the figures are very odd, with very low turnouts in the cities and massive ones in the rural areas, which is unprecedented in this country,' he said. Polling stations in Harare were reduced by 32 per cent in favour of an increase of voting outlets in rural areas, considered Mugabe's support base. Of 882,176 people registered to vote in Harare Province, 439,656 or 49.8 per cent actually did so during the three days of polling that began Saturday and saw mile-long queues across the capital. The MDC, charging that the Mugabe government had followed a deliberate strategy of impeding the urban vote, went to the High Court and won an extra day of voting on Monday, but polls opened several hours late, and only an additional 24,000 votes were cast. The election is the hardest fought battle for Zimbabwe's top post since liberation war hero Mugabe took over after independence from Britain in 1980. `The election was preceded by months of government-orchestrated violence meant to intimidate voters (and) the opposition was repeatedly harassed and prevented from campaigning,' she said. Turnout across the southern African country was an estimated 66 per cent in an election fraught by violence, intimidation and intense legal wrangling over civic rights and electoral rules. Even after the polls closed Monday, Mugabe's government kept up the pressure on the opposition by charging MDC Secretary General Welshman Ncube with high treason, which the party dismissed as a smear tactic. Ncube, along with Tsvangirai and four other top party officials, had been accused last month of plotting to assassinate the President. The tumultuous campaign grabbed international headlines and sparked diplomatic rows that landed Mugabe with sanctions from the European Union and the United States. Violence has claimed at least 33 lives, mostly those of opposition supporters, since the start of the year. The influential International Crisis Group (ICG) warned that the `risk of major violence erupting is exceedingly high' if the election was seen to be rigged.