SEOUL, South Korea: South Korea’s military said North Korea conducted its second weapons test in less than a week Wednesday, firing two short-range ballistic missiles off its east coast in a move observers say could be aimed at boosting pressure on the United States as the rivals struggle to set up fresh nuclear talks.

South Korea’s Joint Chiefs of Staff said in a statement that the missiles were launched from Wonsan, a city the North pushes as a vacation destination but that it also uses as a regular launch site.