Alva Review-Courier -

TOKYO (AP) — North Korean media stepped up their rhetorical attacks on South Korea and joint military exercises with the United States, warning Tuesday that a budding detente could be in danger.

State media unleashed three strongly worded commentaries slamming Seoul and Washington for the maneuvers and demanding Seoul take action against defectors it claimed were sending anti-North Korea propaganda leaflets across the border.

The official media had until recently taken a relatively subdued tone amid the North's diplomatic overtures to its neighbors, including a summit with South Korea's presid...