At least 10 persons were killed in a hotel fire in China's Jiangxi province on Saturday, firefighters said.At least 10 construction workers were working when the fire broke out on the second floor of HNA Platinum Mix Hotel in Nanchang city, Xinhua news agency reported.At least 13 persons were being treated in a hospital.The four-storey hotel is connected to a 24-storey apartment building where over 260 residents were evacuated.Seven persons were arrested in connection with the incident.