Dubai - Two witnesses told AFP they heard an explosion and saw a plume of smoke rising from Dubai's famed man-made island The Palm, as authorities reported four injured.
The attack came as Iran carried out retaliatory strikes in the oil-rich Gulf following US and Israeli attacks -- rattling a region long seen as a haven of peace and security.
One of the witnesses said he saw thick black smoke rising from a hotel on the Palm and heard ambulances rushing towards the scene.
The Dubai media office later confirmed an "incident" in a building in the Palm Jumeirah area that resulted in a fire and four people were injured.
"Dubai Civil Defence has confirmed that the resulting fire is now under control. Four individuals sustained injuries and have been transferred to medical facilities," it added.
The incident targeting a Dubai landmark shocked residents and was followed by several bangs heard by Dubai residents and AFP correspondents in the city.
Iran launched strikes on all Gulf countries except for Oman, a mediator in the US-Iran talks.
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