Armed men have attacked a police station in north Iraq with mortar rounds and automatic weapons, killing nine police officers, according to a security official.The attack took place at around 7:30 am (0430 GMT) Wednesday in sixty kilometers south of the northern city of Mosul. Reports say that another two police officers were also wounded in the attack. Two more people were also wounded by a road side bomb as emergency personnel travelled to the scene of the assault. Meanwhile, in another incident on the same day, gunmen killed a man in Baqouba, a city located about 50 km (30 miles) northeast of Baghdad. On Tuesday night, bombs went off when hundreds of people had gathered for prayers at four mosques -- two mosques in the northern city of Kirkuk, one in the Dura area of south Baghdad and another in Kut, southeast of Baghdad -- leaving 12 worshippers dead and dozens more injured. Earlier in the day, terrorist attacks in the provinces of Nineveh, Kirkuk, Diyala and Salaheddin killed 16 people, including seven policemen, and injured many others. The incidents are the latest in a string of attacks across Iraq that have left more than 2,900 people dead since the beginning of April. In the first 14 days of Ramadan, more than 400 people have lost their lives in violence across Iraq.