Tehran: 

 Iran's foreign minister on Friday said Tehran was investigating an overnight attack on Iran, adding that so far a link to Israel had not been proven as he downplayed the strike.

Iranian Foreign Minister Hossein Amirabdollahian told NBC News the drones took off from inside Iran and flew for a few hundred meters before being downed.

"They're ... more like toys that our children play with, not drones," Amirabdollahian said.It has not been proved to us that there is a connection between these and Israel," he said, adding that Iran was investigating the matter but that media reports were not accurate, according to Tehran's information.

Iranian media and officials described a small number of explosions, which they said resulted from air defenses hitting three drones over Isfahan in central Iran in the early hours of Friday. They referred to the incident as an attack by "infiltrators", rather than by Israel, obviating the need for retaliation.