Baghdad, Oct 31 (IANS): At least six people were killed Thursday and 33 others wounded in a coordinated suicide bombing and two car bombings in Salahudin province of Iraq, police source said.

The attack occurred in the afternoon when a suicide bomber blew up his explosive vest at a busy marketplace in Askari district in Tuz-Khurmato city, 90 km east of the provincial capital Tikrit, which is about 170 km north of Baghdad, a police source told Xinhua.

Afterwards, two car bombs exploded successively at the scene of the first blast, the source added.

The toll could rise as ambulances, police and civilian vehicles were taking the victims to the city hospitals and medical centres.

The ethnically mixed city of Tuz-Khurmato is part of the disputed areas claimed by the Kurds and both Arabs and Turkomans. The Kurds want to incorporate areas at the edges of their current Kurdistan region into their domain. The Kurds move is being fiercely opposed by the Baghdad government.

Iraq is witnessing its worst eruption of violence in recent years. According to the UN Assistance Mission for Iraq, almost 6,000 Iraqis were killed and over 14,000 others injured from January to September 2013.