Three men were injured, two of them grievously, as a flagpole came crashing on them while they were taking it down in Fgura.
The police said the accident happened on Monday on the roof of a residence in Triq Mahatma Gandhi at 6pm.
Two men, aged 49 and 41, were grievously injured, while a 77-year-old was slightly injured.
They were all taken to Mater Dei Hospital by ambulance.
The police are investigating.