Bombings killed 20 people and wounded dozens at a cafe in the Iraqi town of Muqdadiyah northeast of Baghdad on Monday, officers said, according to AFP.

A bomb exploded at the cafe and a suicide bomber detonated an explosives-rigged vehicle after people gathered at the scene, a police captain and an army colonel said.

There was no immediate claim of responsibility for the attack, but suicide bombings are a tactic frequently used by Sunni terrorists in Iraq, including the Islamic State (ISIS) jihadist group.

The officers said that Shiites set alight several Sunni homes and a mosque following the attack.

A top Iraqi army officer declared that Diyala province, where Muqdadiyah is located, had been “liberated” from ISIS in late January 2015, but that has not brought an end to attacks by the jihadists.

ISIS overran large areas north and west of Baghdad in June 2014, but Iraqi forces backed by American-led air strikes have since dealt the jihadists significant defeats.

ISIS has claimed many of the biggest attacks in Baghdad and elsewhere in the country. In July, a string of bomb explosions believed to have been carried out by ISIS killed at least 21 people and wounded 62 in Shiite-dominated neighborhoods of Baghdad.

In April of 2015, car bombs in the Baghdad area, including one near a hospital, killed at least eight people. And in May, ISIS claimed responsibility for car bombings at two upscale Baghdad hotels that officials said killed at least nine people and wounded dozens.

AFP contributed to this report.