Health authorities are trying to confirm whether a man in his 30s who died with pneumonia-like symptoms on Tuesday after visiting China last month was infected with COVID-19.

According to the authorities, an emergency team was dispatched to Seoul’s Gwangak District at around 9:05 a.m. upon getting a 119 call that the man, identified only as A, was unconscious and not breathing. 

A was immediately transported to the hospital but died at around 10:30 a.m. 

Traces of pulmonary hemorrhage were found in A’s body and he was found to have suffered symptoms associated with pneumonia.

A reportedly traveled to China’s Hainan Province for three days last month with his family.