Iraq, locked in a public row with neighbouring Turkey, has summoned Ankara's ambassador in Baghdad to protest at critical remarks by Turkish Prime Minister Tayyip Erdogan, the foreign ministry said on Monday.
The envoy, Younis Demerer, heard the Iraqi complaint on Sunday after several days of charge and counter-charge.
Erdogan accused his Iraqi counterpart Nuri Al-Maliki on Thursday of stoking conflict between various groups through "self-centred" behaviour.
Maliki fired back that Turkey was becoming a "hostile state" with a sectarian agenda, saying it was meddling in Iraqi affairs and trying to establish regional "hegemony".
Erdogan returned to the fray on Saturday, saying: "If we respond to Mr. Maliki, we give him the opportunity to show off."
Analysts say mainly Turkey is worried that growing tensions in Iraq and violence in their mutual neighbour Syria may lead to a wider conflict in the region.
Erdogan's government has also recently forged close ties with Masoud Barzani, president of Iraq's semi-autonomous Kurdish region, which is embroiled in a row with the Baghdad government over claims to the city of Kirkuk and the region's oil.
"(Foreign ministry undersecretary) Mr. Labeed Abbawi acquainted the Turkish Ambassador with the Iraqi government's intense protest against the recent statements," the Iraqi foreign ministry said on its website.
"Undersecretary Abbawi expressed hope that the Turkish government will stop giving statements that affect Iraq's sovereignty and internal affairs."
Erdogan has criticised Maliki several times since sectarian tensions flared in Iraq in December when the government tried to remove Deputy Prime Minister Saleh Al Mutlaq and sought an arrest warrant for Vice President Tareq Al Hashemi on charges he ran death squads.
Hashemi fled Baghdad and has since met Erdogan in Istanbul.
The rift between Baghdad and the Kurds worsened this month when the Kurdistan Regional Government said it was halting oil exports because the central government was not paying oil firms operating in the north.