SEOUL—North Korea fired a type of short-range weapon off the country’s east coast on Saturday morning, according to South Korea’s Defense Ministry, the latest military provocation from Pyongyang amid stalled nuclear talks with Washington.

Multiple projectiles were fired between 9:06 a.m. and 9:27 a.m. local time, according to South Korea’s Joint Chiefs of Staff, which said it believed the weapons had flown 70 to 200 kilometers. The projectile weaponry was under review by the South Korean and U.S. military, said the South’s...