MOGADISHU, Aug 3 (Reuters) - Three women were killed in the Somali capital on Sunday, and seven others were wounded when a remotely detonated bomb exploded in a busy market, police and witnesses said.
It was not immediately clear who was behind the bombing.
In recent weeks, al Qaeda-linked al Shabaab insurgents have increased gun and bomb attacks in Mogadishu, with the latest incident on July 5, when its fighters attacked the presidential palace.
The women killed in the blast were city workers, who were cleaning the streets when a bomb hidden in a rubbish pit exploded in the busy market sector known as Hodan district of Mogadishu, police said.
"We heard a big blast, and then I could see the old mothers who were cleaning the scene lying, some of them dead and others screaming. The bomb was wrapped in a big, black plastic bag and then placed inside the rubbish along the Taleh street," Nuria Ahmed, a mother of four who lives near the scene, told Reuters.
"I counted three dead and seven others injured. I was the first person who arrived for help. It is very unfortunate if mothers are the target."
Reuters' witnesses saw the three dead female city cleaners and the other seven injured at the scene and at Madina hospital.
"A remotely controlled roadside bomb killed three female city cleaners and injured seven others in Hodan district. The militants hid the bomb inside a rubbish pit," Major Ali Afrah, a police officer, told Reuters.
African Union forces along with the Somali army launched a new offensive this year against the group, which is fighting to impose a harsh version of Islamic law on Somalia.
Several towns have been taken back from the group, but officials say the Islamists still control large sections of countryside and some settlements, from where they have been able to continue their guerrilla-style campaign.
The militants have also staged attacks outside Somalia, including one at a Kenyan shopping mall in September that killed at least 67 people.
(Reporting by Abdi Sheikh and Abdirahman Hussein; Writing by James Macharia; editing by Jane Baird)
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