Guests at the Corinthia Palace Hotel in Attard were evacuated for some time after a fire broke out on Wednesday morning.
Civil Protection Department personnel were on site to control the blaze, which developed at the sauna of the hotel.
The blaze was put out within a few minutes, eyewitnesses said.
The guests and the staff were allowed back into the complex soon afterwards.
The fire is believed to have started from an electrical fault.