The United States has launched a second wave of "targeted airstrikes" against ISIS militants in northern Iraq.

Today, Shepard Smith reported on the most recent actions against the Islamist militants who have besieged a Christian religious group, abducted hundreds of Yazidi women and threatened the city of Irbil.

The USA Today reported:

Rear Adm. John Kirby, spokesman for Defense Secretary Chuck Hagel, said the second wave of strikes used a drone to attack a mortar position while four FA-18 fighter-attack planes hit a seven-vehicle convoy outside Irbil.

Strikes could continue through the weekend, Kirby said. Humanitarian-aid drops will continue as well.

The morning strikes involved two FA-18 fighter-attack planes dropped 500-pound, laser-guided munitions on a mobile artillery place near Irbil, the capital of the Kurdish region, the Pentagon said.

The jets for both strikes came from the USS George H.W. Bush, an aircraft carrier operating in the Persian Gulf, according to a Defense Department official who spoke on condition of anonymity to discuss sensitive military details.

President Obama said Thursday night that airstrikes would be used if the militants threatened Irbil, home to a U.S. consulate and a joint U.S.-Iraqi operations center.

Jonathan Hunt joined Shep and stated that slowing the march of ISIS is crucial. He said military action isn’t the only way, as economic punishments against ISIS leaders and those who support them could be effective.

An issue with that, Hunt said, would be that many Islamists feel much more strongly about their ideology than any economic hardship.

He also noted that the Pentagon is always planning for issues like this and has not been caught off-guard by the rise of ISIS, with the possible exception of the initial surge.

Shep raised the issue of U.S. ally Jordan sitting to the east, where they could potentially be ISIS' next target.

"It's a great worry for every leader in that region," Hunt said, who added that the public opinion of more moderate Muslims will play a huge role.

Watch the clip from Shepard Smith Reporting above and stay with and Fox News Insider for updates.