■ Violence and confusion surround Afghanistan’s parliamentary elections.

KABUL, Afghanistan — Afghanistan’s first parliamentary elections in eight years suffered from violence and chaos Saturday, with a multitude of attacks killing at least 36 people, key election workers failing to show up and many polling stations staying open hours later than scheduled to handle long lines of voters.

Problems surrounding the elections — already three years overdue — threaten to compromise the credibility of polls, which an independent monitoring group said were also marred by incidences of ballot stuffing and intimidation by armed men affiliated with candidates in 19 of the country’s 32 provinces. Some areas have yet to vote, including Kandahar, where the provincial police chief was gunned down Thursday.

Stakes were high in these elections for Afghans who hoped to reform Parliament, challenging the dominance of warlords and the politically corrupt and replacing them with a younger, more educated generation of politicians. They were also high for the U.S., which is still seeking an exit strategy after 17 years of a war there that has cost more than $900 billion and claimed more than 2,400 U.S. service personnel.

Deputy Interior Minister Akhtar Mohammed Ibrahimi said 36 people were killed in 193 insurgent attacks across the country: 27 civilians, eight police officers and one Afghan soldier. He said attackers used everything from grenades to small arms fire to mortars and rocket launchers, and that security forces killed 31 insurgents.

The most serious attack on the polls was in a northern Kabul neighborhood where a suicide bomber blew himself up just as voting was about to end, killing three people and wounding another 20, many of them seriously, said Dr. Esa Hashemi, a physician at the nearby Afghan Hospital.