'BTS 2ND MUSTER [ZIP CODE : 17520]' was scheduled for June 13th, their 2nd anniversary date, but Big Hit Entertainment has revealed that the event has been canceled due to the MERS outbreak in Korea. 

SEE ALSO: BTS’s ‘DNA’ music video surpasses 1.6 Billion views, becoming group’s third to hit milestone

The announcement was posted on the boys' official fancafe, and read,

Hello, this is BigHit Entertainment.

We regret that the BTS 2ND MUSTER [ZIP CODE : 17520] on June, 13th will be canceled because of MERS(Middle East Respiratory Syndrome) situation.

After careful consideration, BigHit Entertainment has made this decision for your safety first.

For a while, it will be hard to consider replanning for A.R.M.Y 2^nd term Fan Meeting, but we are doing our best with schedule arrangement and the venue situation.

Customers who purchased their tickets and bus fare* (*bus transportation arranged by BigHit Ent.) will be refunded. For details of how to obtain refunds, we will notify you ASAP.

We appreciate your kind understanding.

Thank you.

'MUSTER' was planned to be a big event, with the boys' even having a 2-week period full of events named '2015 BTS FESTA' ramping up to the fanmeet, so many fans are sure to be disappointed by the unfortunate news.