The American people see Daesh as a bigger threat to the U.S. than Iran, Russia or other countries, a new CNN/ORC poll showed Wednesday.

The poll showed that 68 percent interviewees think Daesh is a very serious threat, compared with just 39 percent who think so about Iran, 32 percent about North Korea, 25 percent about Russia. Nearly 9 in 10 see Daesh as at least a moderately serious threat.

The majorities across political and ideological lines say Daesh is a deeply serious threat to the U.S., including 68 percent of Democrats, 79 percent of Republican and 63 percent of independents.

Last Sunday, six Somali-Americans from the state of Minnesota have been arrested by U.S. Federal Bureau of Investigation for trying to join Daesh, raising concerns that the threat posed by the group is growing and the military battle against ISIS could spread.

In a CNN/ORC March poll, the public remained mostly confident that the U.S. effort to combat Daesh would succeed, it also showed 79 percent of Americans were worried that the conflict would develop into a larger war that would spread throughout the region to other parts of the world.