WASHINGTON — North Korea launched its third missile test in just over a week, in what President Trump described on Thursday as a test involving short-range missiles with which he had “no problem.”

Defense Department officials said it appeared that two projectiles were launched, although it was unclear from where, or what type of missiles were fired.

The flurry of missile tests comes before a joint military exercise this month between the United States and South Korea that North Korea has sharply criticized.

It also comes as North Korean officials failed to appear at an annual meeting of the Association of Southeast Asian Nations that they have attended in the past. “We stand ready to continue our diplomatic conversation with the North Koreans,” Secretary of State Mike Pompeo told reporters on Thursday at the forum in Bangkok.