The Foreign Ministry has urged travelers to exercise caution when visiting parts of the U.S. that could be targets for terrorism, following Sunday's mass shooting at a gay nightclub in Orlando, Florida.

In an advisory issued Monday, the ministry said people should seek out the latest safety-related information before traveling to the U.S.

It also said travelers should be vigilant after the Islamic State group in May called on its followers to carry out attacks on the West during Ramadan, which lasts from around June 6 to July 5.