Highlight's Doojoon is unable to attend overseas events due to military service laws. 

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On June 7, Highlight's label Around Us Entertainment stated, "According to military service laws, it will be difficult for Highlight member Doojoon to leave for overseas. Doojoon will not be able to attend the 'K-Food' event in Hanoi, Vietnam on June 9 or the fan meeting in Bangkok, Thailand on June 24."

The agency continued, "In the case of the Bangkok fan meeting, we're negotiating with the local staff so fans who want to can refund their tickets. We'll do our best, so that no one is inconvenienced."

Though Doojoon has not yet started his mandatory military service, new military service laws under the Military Service Act prevent those who'll be serving soon to leave the country.

In other news, Doojoon is reprising his role as Goo Dae Young in the upcoming drama 'Let's Eat 3'.