North Korea on Tuesday fired at least one ballistic missile toward its eastern sea, according to the South Korean military, as the country continued its weapons demonstrations hours before the U.S. presidential elections.

South Korea says the U.S. has flown a long-range bomber in a trilateral drill with South Korea and Japan in response to North Korea’s recent test-firing of a new intercontinental ballistic missile designed to strike the U.

North Korea on Tuesday fired multiple short-range ballistic missiles toward its eastern sea, the South Korean military said, as the country continued its weapons demonstrations hours before the U.S. presidential election.