Rep. Peter King said Sunday extensive police surveillance is necessary to prevent terrorist attacks like the one this week in Spain, "whether or not that's politically correct."

"If somebody is driving a vehicle down the road and they decide to go into a crowd, there's no way you can stop it," King said on Fox News' "Sunday Morning Futures." "But if you do know in advance they plan on doing that, the idea is to stop them and lock them up before they can do it and that involves one, getting informants within the community, it involves people coming forward and it involves extensive police surveillance."

The New York Republican said that strategy was the only way to mitigate terror threats, despite arguments surrounding "whether or not that's politically correct or not."

A string of terror incidents near Barcelona, Spain, on Thursday and Friday claimed the lives of 14 people and injured more than 80 others.

King, a former chairman of the House Committee on Homeland Security, also predicted new White House chief of staff John Kelly will be more effective now that chief strategist Steve Bannon has been ousted from the West Wing.

"Listen, I have nothing personal against Steve Bannon, but the way he was operating within the White House was undermining the president," King, who advocated for Bannon's removal, said. "You can't have somebody like that within the White House. Let Gen. Kelly do his job. I think John Kelly is going to be the hero of this administration."