It was the second blast in the country in barely a week. Last week, a female suicide bomber killed six people, including two top sports officials, in the theatre near the presidential palace in Mogadishu.
The attack on Monday was the deadliest since Ethiopian and Somali troops captured Baidoa, about 250 km to the southwest of Mogadishu, from al Qaeda-linked al Shabaab rebels in February.
Al Shabaab claimed responsibility for the latest attack.
"We planted a remotely controlled bomb in Baidoa market. We targeted the Ethiopian and the Somali troops. About three of them died," Sheikh Abdiasis Abu Musab, spokesman for al Shabaab`s military operations, told Reuters.
Musab said government soldiers had killed a number of civilians after opening fire following the blast but the regional governor has denied the accusation.
Witnesses said the explosion happened outside a butchery.
"As we shopped we suddenly heard a blast. I counted 10 dead civilians and over 30 others injured," Shukri Hussein, a mother of five, told Reuters by telephone from Baidoa market.
Ali Aden, a nurse at Baidoa hospital, told Reuters they had received 35 wounded civilians.
Abdifatah Ibrahim Mohamed, the Bay region governor, told Reuters from Baidoa, said at least 12 civilians were killed and more than 30 wounded.
Ethiopia sent troops into Somalia last year to open another front against al Shabaab after Kenya deployed soldiers in the south. On Thursday, the African Union`s AMISOM force deployed 100 soldiers to the country`s third biggest city and a former rebel stronghold in the south that served as a key recruitment and training centre until it fell to Ethiopian forces. (*)
Editor: Kunto Wibisono
Copyright © ANTARA 2012
