People inspect the site of a double suicide bomb attack in the Shiite neighborhood of Sadr city in Baghdad on Sept. 21. (Hadi Mizban/Associated Press)

Two suicide bombers, one in an explosives-laden car and the other on foot, hit a cluster of funeral tents packed with mourning families in a Shiite neighborhood in Baghdad, the deadliest in a string of attacks in Iraq that killed at least 92 people on Saturday.

Thousands of Iraqis have been killed in violent attacks in recent months — a level of bloodshed not seen since Iraq pulled back from the brink of civil war in 2008 — despite appeals for restraint from Shiite and Sunni political leaders.

The attack on the funeral was one of the largest terrorist assaults on civilians in Iraq in recent years. It happened shortly before sunset in the densely populated Shiite neighborhood of Sadr City in northeastern Baghdad.

Police said at least 72 people were killed and more than 120 wounded in that attack. One bomber was able to drive up near a tent before detonating his deadly payload, and another, on foot, blew himself up nearby, police said.

The explosions set the tents and several nearby cars on fire, sending a towering plume of black smoke over the city.

“The scene was horrible. The funeral turned into an inferno,” said Sheik Sattar al-Fartousi, one of the mourners.

Less than two hours later, a car bomb exploded in a commercial street in the nearby Ur neighborhood, killing nine people, police said.

Earlier in the day, insurgents launched a suicide attack on a police commando headquarters in the city of Baiji, an oil-refining center 115 miles north of Baghdad. Guards managed to kill one suicide bomber, but three others set off explosive belts inside the compound, killing seven policemen, police said.

In other violence, gunmen shot and killed two prison guards after storming their houses in a village near the restive city of Mosul early Saturday. And two soldiers were killed when a roadside bomb struck their convoy in Mosul, 225 miles northwest of the capital.

There was no immediate claim of responsibility for the day’s attacks. Al-Qaeda’s local franchise in Iraq often targets Shiite civilians and security forces in an attempt to undermine public confidence in the Shiite-led government in Baghdad.

Saturday’s violence came as voters in the northern Kurdish autonomous region cast ballots in local elections for the Kurdistan Regional Government’s 111-seat legislature. Iraqi Kurds are looking to bolster their autonomy while insulating their increasingly prosperous enclave from the growing violence roiling the rest of the country.

— Associated Press