At least 10 people were killed in an explosion at a market in northern Nigeria, only hours after President Goodluck Jonathan was sworn in for a new term, a news report said Monday.

Twenty people were also injured when the bomb went off at 1900 GMT Sunday at a market near an army barracks in the city of Bauchi, the BBC said, quoting local officials. No one has claimed responsibility for the attack.

Mr. Jonathan was sworn in Sunday in the capital Abuja amid tight security for a four-year term and vowed to tackle corruption, which he described as the root of underdevelopment in Nigeria.

On April 18, Jonathan was declared the winner of the 2011 presidential election, having secured nearly 60 per cent of the vote, but his victory set off violence in mainly Muslim northern Nigeria.

Mr. Jonathan hails from the Christian south of the country.

A member of the ruling Peoples Democratic Party (PDP), Jonathan, then vice-president, first took power in May 2010 when his predecessor Umaru Yar’Adua died in office.

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