GOP lawmaker: Be ready for tighter security, Islamic State is 'out to get us

Rep. Peter King (R-N.Y.) said the United States needs to step up its surveillance of possible terrorists who are being directed by the Islamic State, in the wake of Wednesday's shooting in Canada by a man who had just converted to Islam.

King also warned that the Islamic State is "out to get us," and that there have been signs for the past few weeks that the group has called for these kinds of attacks. While it's not clear that the shooter in Canada was motivated by the Islamic State, Canadian officials had designated him as a "high risk traveller."

King, who sits on the House Intelligence and Homeland Security Committees, said the U.S. has already started to tighten up security at possible terrorist targets in the United States.

"There are real concerns because there has been an increase in chatter over the last week, because the fact that ISIS has made it clear going back over several weeks now that they want to attack military personnel and their families," King said on Fox News Wednesday night.

"That's why we see, for instance, the increase in security at the Tomb of the Unknown Soldier today, at consulates in this country," he said. "You're going see, I believe, an increase in security throughout the country, certainly at any target that could be considered targeted by the terrorists."

Canadian officials on Wednesday identified Michael Zehaf-Bibeau as the man who shot and killed a guard at a war memorial and then entered the Canadian Parliament before being shot and killed. When asked what can be done to stop this kind of lone-wolf terrorists, King said the U.S. needs to be more proactive by boosting surveillance of these suspects.

"We have to be more aggressive. And if we have any indication or any inkling at all, there has to be, I think, much more intense surveillance and coverage of them," he said.

"We have to have greater surveillance," King added. "We can't be sitting back and be passive. We can't be somehow hoping it's not going to happen. They are serious about this."

The shooting drew reactions from other House leaders, including House Speaker John Boehner (R-Ohio), who said countries will "not be intimidated by those who seek violence, repression, and fear."