Tremors have been felt across the Gulf following two powerful earthquakes in southern Iran.
Iranian government-owned Press TV reported that at least three had died following the quakes.
A 6.3-magnitude earthquake was recorded at Busheher – the site of an Iranian nuclear facility - at 3.52pm local time, according to the European-Mediterranean Seismological Centre.
A second quake, with magnitude 5.4, struck near Firuzabad at 4.05pm local time.
Both quakes were 10 kilometres underground.
Tremors have been felt as far away as Dubai, Abu Dhabi, Qatar, Saudi Arabia and Bahrain, according to social media websites.
Workers have been evacuated from several buildings in the Dubai financial district and at Pearl in Qatar.
The Earthquake Report website said lights swayed on the eighth floor of a building in Dubai, while a building shook in Bahrain.
Earthquakes are common in Iran. Most recently, at least five people died when a 5.5-magnitude quake struck eastern Iran in December.
Multiple after-shocks have been recorded at varying magnitudes, between 4.1 and 4.8.