Rex Tillerson says US will keep up `peaceful pressure` on North Korea

US Secretary of State said on Sunday the firing of three ballistic missiles by North Korea this week was a provocative act.

Washington: US Secretary of State Rex Tillerson said on Sunday the firing of three ballistic missiles by North Korea this week was a provocative act but that the United States will continue to seek a peaceful resolution. 

"We do view it as a provocative act against the United States and our allies," Tillerson said in an interview on Fox News Sunday.

"We`re going to continue our peaceful pressure campaign as I have described it, working with allies, working with China as well to see if we can bring the regime in Pyongyang to the negotiating table," he added.