TEHRAN— Gunmen attacked an Iranian oil delegation visiting Baghdad on Wednesday, the Iranian Oil Ministry said.
"The delegation was attacked by terrorists but they are not harmed and have no problems," the ministry's Shana website said.
"The delegation visited Iraq to hold talks about exporting fuel to Iraq. They came under gunfire when heading to the Electricity Ministry building."
An Iraqi Interior Ministry source said the convoy came under fire in central Baghdad and two Iraqi guards were wounded.
Another Iraqi government source said it was an Iranian technical team visiting Baghdad as part of meetings to discuss border demarcation and investment in joint oilfields.
Iran did not say who was behind the attack and no group has taken responsibility for the attack yet.
Iraq is home to a base of the People's Mujahideen Organisation of Iran (PMOI), which the United States, Iraq and Iran consider a terrorist group.
The PMOI has for decades advocated the overthrow of the Islamic Republic of Iran, in place since 1979.
The fate of the base at Camp Ashraf, 65 km (40 miles) north of Baghdad, has been in question since the U.S. military turned it over to Baghdad in 2009 under a bilateral security agreement.
In April, Iraqi forces moved against the camp in what they said was an attempt to reclaim land and return it to farmers.
The United States has proposed a temporary relocation of Ashraf's residents within Iraq, pending eventual resettlements in third countries, but the PMOI's umbrella group -- the National Council of Resistance of Iran (NCRI) -- rejects this.
© 2015 Thomson/Reuters. All rights reserved.