North Korea announced Saturday it will close two aviation routes
through its air space from April 4 through April 8 during a
planned rocket launch.
The North says it will launch a communication satellite. The United States, Japan and South Korea say Pyongyang intends to test a long-range ballistic missile.
They say the launch would violate a U.N. Security Council resolution imposed in 2006 after North Korea tested long range missiles and a nuclear weapon.
Japan and South Korea have warned North Korea it will face a strong international response if it goes ahead with the launch.
Japan has said it will attempt to shoot down missiles headed toward its territory.
Top U.S. military commanders told members of Congress this week the American military is probably capable of shooting down a long-range North Korean missile if it threatens U.S. territory.
Some information for this report was provided by AFP and AP.