KYIV, March 16 (Reuters) - Russia launched a rare daylight attack on Kyiv on Monday using drones that appeared upgraded, Ukrainian officials said, with multiple explosions ripping through the city and drone debris crashing onto the capital's main square.

California Gov. Gavin Newsom says there's no imminent threat to the state from Iran. ABC News says the FBI warned California that Iran had aspired to send drones to the West Coast in retaliation for war.

The FBI has reportedly warned California police departments that Iran could retaliate for U.S. attacks by launching drones at the West Coast.

MOSCOW, March 16 (Reuters) - Russia said on Monday that it shot down 250 Ukrainian drones heading towards Moscow over the weekend, in what officials said was the biggest attempted attack on the Russian capital in at least a year.

Ukraine’s air force reported shooting down 194 of 211 Russian drones launched in a single overnight barrage. Ukrainian officials described the attack as atypical in its timing and flight patterns, a shift that could indicate an attempt to complicate air-defense coverage during less predictable hours.

“I think it is a cautionary warning, and I think it's one that we should take heed with."

It comes after a separate drone strike at Fujairah on Saturday, underlining the vulnerability of the UAE's only export route that bypasses the Strait of Hormuz.

The FBI issued a warning just ahead of the U.S. and Israeli strikes on Iran about a potential "surprise attack" by Tehran against unspecified targets in California.

As Operation Epic Fury enters its third week, relentless attacks by cheap Iranian drones are being fended off by multi-million-dollar U.S. interceptors. How long can the math hold up?

The Defense Department wants to mass produce a kamikaze drone the U.S. military recently used to strike Iran, according to the top Pentagon official. The one-way attack drone, called Lucas, is an [Ame