BAGHDAD — The government minister largely responsible for security in Baghdad submitted his resignation Tuesday, two days after one of the biggest bombings in more than a decade of war and insurgency killed 175 people as the Muslim holy month of Ramadan came to an especially bloody conclusion.

In addition to the violence in Baghdad, the final week of Ramadan saw suicide attackers strike near one of Islam’s holiest sites in Saudi Arabia, in an upscale neighborhood of the capital of Bangladesh, and at the international airport in Turkey’s commercial hub of Istanbul.

The series of attacks, which bore the hallmarks of the group that calls itself the Islamic State, killed both Muslims and non-Muslims, but also highlighted the reach of the militants beyond Iraq and Syria, where they hold territory and where a US-led coalition is focusing most of its resources against the extremists.

Muslims worldwide are preparing for the Eid al-Fitr holiday that marks the end of Ramadan.

Iraqis were still recovering bodies from the site of Sunday’s truck bombing in the center of the capital, the single deadliest attack claimed by the Islamic State group worldwide.

At least 175 people were killed and nearly 200 wounded, while a dozen people remain unaccounted for. Police and health officials, who spoke on condition of anonymity because they were not authorized to release the information, warned that the death toll could grow.

The bombing followed a string of significant territorial losses suffered by Islamic State militants on the battlefield in Iraq and Syria, where they have declared their caliphate.

Associated Press