Fresh violence flared in Guinea on Tuesday with post-poll clashes claiming two lives a day after opposition leader Alpha Conde was named the winner of the country's first free presidential election.

The new wave of violence brings to four the number of deaths in two days, with dozens more injured in an atmosphere fraught with tension over the election results.

Conde won with 52.52 percent of the votes, beating rival Cellou Dalein Diallo with 47.48 percent, according to the electoral commission. But the defeated former prime minister maintains he is the rightful victor if results are "purged" of massive voting fraud.

While Conde called for harmony after he was announced the winner, Diallo urged his supporters to "remain calm, avoid provocation and violence of any nature."

However isolated clashes on Tuesday saw one man killed in the capital Conakry and another in the centre of the country.

"This morning in Conakry in the Simbya district a man was killed by a soldier. There was a dispute between them, the man tried to escape and the soldier shot him in the neck," said a police source.

In Pita in central Guinea one man was killed and 14 injured when supporters of Diallo looted two houses and a neighbour belonging to the rival camp opened fire on them, a Red Cross source said.

On Monday other witnesses from Middle Guinea said soldiers had killed a man while several others had been shot and injured. A fourth victim died in clashes between Diallo supporters and police before the results were announced.

Soldiers and special election security police (Fossepel) Tuesday patrolled hotspot suburbs of Conakry such as Ratoma, a Diallo stronghold. Witnesses said soldiers would randomly fire shots as they passed through the suburb.

Earlier Tuesday UN representative in Guinea, Said Djinnit, said people had followed a call to remain peaceful and "the country and Conakry are generally calm, despite the incidents that were reported last night."

The streets of Ratoma were largely deserted, anxiety outweighing the festivities usually seen on the biggest day in the Muslim calendar, the Festival of Sacrifice Eid al-Adha.

"Today is the grand Muslim sheep festival but this is not what concerns us," said 21-year-old student Aboubacar Balde.

"Few people went to pray. All activity has stopped, and there is no traffic except for Fossepel vehicles. People say that there was a fraud, the Supreme Court should correct the results."

Diallo said he would prove to the Supreme Court that the vote was "riddled with irregularities and fraud," and if it did so he hoped to "be rightfully declared the winner."

The Supreme Court has to confirm the election results, and if so Conde will become the fifth leader of Guinea since independence from France in 1958.

He follows after a succession of strongmen: "father of independence" turned despot Sekou Toure who ruled for 26 years; military leader Lansane Conte who ruled for 24 years; coup leader Moussa Dadis Camara who was in place for just over a year; and transition president General Sekouba Konate.

But Konate led Guinea to its first-ever democratic election, with a first round of the presidential poll taking place on June 27 from which Diallo emerged with 43 percent of the vote while Conde garnered 18 percent.

The results from the first round pitted the country's two ethnic majorities, the Fulani and the Malinke, against each other, causing clashes between rival camps in the run-up to the vote.

Despite Diallo's apparent commanding lead, an aggressive campaign, alliances and ethnic voting allowed Conde to gain ground.

The historic election brings to an end 52 years of dictatorship and military rule in the mineral-rich but desperately poor country, where most inhabitants live without running water or electricity.