Two bombs exploded Monday morning in the oil-rich south-western Iranian city of Ahwaz, killing more than six people and wounding 24 others, police said, according to BBC.
A police spokesman said one bomb exploded outside the privately-run Saman bank in the Kianpars Street, killing six people and injuring 15 others.
He added that the second bomb targeted the Natural Resources Department, a governmental agency, in the Golestan Road, wounding nine people.
Initial investigations showed that the explosive devices had been percussion bombs, which generally produce a loud bang but little damage, the police official said.
Iranian President MAHMOUD AHMADINEJAD had been due to give a speech at a religious centre near the site of the attacks, an MP said, according to BBC.
Nezam Molla-Hoveyzeh said president’s visit was canceled due to security concerns.
"We met the vice-president yesterday to prepare for AHMADINEJAD's visit to Ahwaz, but we received a telephone call which said the visit, scheduled for today, had been cancelled," he said.
Molla-Hoveyzeh also denounced the attacks, saying he thought separatists were behind them.
"The blasts in Ahwaz are always perpetrated by counter-revolutionary elements, those who engage in activities against Iran from beyond our borders and Britain," he said.
"A satellite network has been provoking ethnic and nationalistic issues recently; and some networks outside the country have been active to encourage separatism in Khuzestan."
The city of Ahwaz lies in the oil-rich Khuzestan Province, which borders IRAQ. The province is home to more than two million ethnic Arabs and has witnessed a wave of unrest last year, including bomb explosions in June and October.
The Iranian government blamed the attacks on the United Kingdom, whose forces are just across the border in southern IRAQ, but British officials denied involvement.