Chinese 14-year-old schoolboy Guan Tianlang became the youngest player in Masters history on Thursday when he teed off at Augusta National in the first round of the 77th Masters.

China appears “frustrated” with volatile rhetoric from its North Korean allies but is eager to see the regime stay in power as a “buffer state” on its border, US spy chief James Clapper said Thursday.

North Korea said Tuesday that the Korean peninsula was headed for “thermo-nuclear” war and advised foreigners to consider leaving South Korea.

Tuesday’s advisory — greeted largely with indifference by foreign nationals in the South — followed a similar one last week to foreign embassies in Pyongyang, to consider evacuating by April 10 on the grounds war may break out.

North Korea said Monday it was withdrawing all workers and suspending operations at a lucrative joint industrial zone with South Korea, blaming foreign “warmongers” at a time of acute tensions.

The announcement came amid reports of heightened activity at the North’s nuclear test site, and at a missile battery, although the South Korean government denied suggestions that a fourth nuclear test was imminent.