<span style="color: #222222;">Al-Shabab militants have attacked police stations and check points in Somalia's capital, Mogadishu, in the early hours of Wednesday, the authorities says.<br />''<br />''Heavy gunfire and multiple explosions were heard at around 01:00 local time. However, Internal Security Minister Abdullahi Nor said on Twitter that the security forces had defeated the militants linked to al-Qaeda.<br />''<br />''There has been no immediate reports of casualties or fatalities.Last week, at least six people died and several others were injured after a suicide bomber targeted a minibus full of delegates involved in the country's ongoing parliamentary elections.</span><br />