Three fuel trucks exploded, killing three people, and a fire broke out near Abu Dhabi airport on Monday in what Yemen's Houthi group said was an attack deep inside the United Arab Emirates.
The three people were killed and six others wounded when three fuel tanker trucks exploded in the industrial Musaffah area near storage facilities of oil firm ADNOC, state news agency WAM said. It said those killed were two Indians and a Pakistani.
Unverified footage on social media showed a thick plume of black smoke billowing from what appeared to be the Musaffah area.
"Initial investigations found parts of a small plane that could possibly be a drone at both sites that could have caused the explosion and the fire," Abu Dhabi police said in a statement, adding there was no "significant damage".
The Houthi's military spokesman said the group launched a military operation "deep in the UAE" and would announce details in coming hours.