SEOUL — The U.S. Embassy in Seoul released a message Tuesday to U.S. citizens living in South Korea to address North Korea’s claims it tested a nuclear weapon on Monday.

The embassy “has received no information from South Korean officials or any other source indicating that there are health dangers that pose a risk to any areas in South Korea,” according to the e-mail message.

American embassy officials in Seoul have been in “continuous contact with South Korean government officials” and are monitoring the situation closely, according to the message.

“In the event of any type of emergency, the Embassy will notify the American community immediately,” it stated.

North Korea claimed to have successfully tested a nuclear weapon early Monday morning. While the reports have yet to be independently verified, U.S. and South Korean intelligence services detected seismic activity at a suspected test site, according to the embassy.

A standing policy for Americans living anywhere overseas is to always be prepared for an emergency, according to the message. Americans living or traveling in South Korea are encouraged to register with the State Department at Anyone without Internet access can register in person at the embassy.

People may sign up for the embassy’s e-mail system at

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