A suicide bomber has blown himself up in a southern district of the Lebanese capital Beirut wounding several people, officials say.The interior minister said the bomber detonated explosives in a minibus during rush hour in Choueifat district, the BBC reported.“A man wearing an explosive belt boarded a public minibus in Choueifat and blew himself up,” Interior Minister Marwan Charbel told.He said at least one person had been killed in the blast, but it was unclear if that was in addition to the suicide bomber. Ayad Monzer of the Lebanese Red Cross said at least two people, a man and a women, were wounded in the blast.