WASHINGTON - A majority of US citizens believe the US military's use of force against Iran was a mistake, according to a new poll published Friday.

Sixty-one percent of US citizens say that using military force against Iran was a mistake, with fewer than 2 in 10 believing that the US actions in Iran have been successful, according to the Washington Post-ABC News-Ipsos poll.

About 4 in 10 say it has been unsuccessful, while another 4 in 10 say it is "too soon to tell," the poll showed.

The war in Iran is "as unpopular among Americans as the Iraq War during the year of peak violence in 2006 and the Vietnam War in the early 1970s," The Washington Post said.

The poll also noted that support for the war among Republicans remains high: 79 percent say it was the right decision.

In addition, most US citizens believe that the US military action against Iran carries potential risks. Among them, 61 percent think it would increase the risk of terrorism targeting US citizens, 60 percent believe it would raise the likelihood of the US economy falling into recession, and 56 percent say US actions increase the risk of weakening relationships with US allies.