SEOUL, South Korea — North Korea launched multiple projectiles off its east coast on Monday in the country’s second weapons test in a week, the South Korean military said.

The projectiles were launched from Sondok, in South Hamgyong Province on the North’s east coast, and flew northeast before falling in waters between the North and Japan, South Korean defense officials said. Some projectiles flew up to 124 miles, they said.

The launches appeared to be part of a live-fire winter military training drill that included various types of multiple-rocket launchers, they said. They provided no further details.

The office of South Korea’s president, Moon Jae-in, said it was a “large-scale” military drill. It followed other North Korean military exercises on Feb. 28 and March 2. The South Korean military expressed “strong regret” over the drills, which it said raised tensions on the Korean Peninsula.