The Spotlight star took to the social media site on Saturday (23Jan16) to reveal he misplaced the items somewhere in the streets of New York City.

"APB (all-points bulletin) out for a cell phone in a wallet case out on the streets of NYC in a blizzard. My drivers license is in there. Reward and signed pic," he wrote to his 2.1 million followers.

The Oscar-nominated actor was then inundated with tips to help him find his lost belongings, with fans giving him advice on which apps to use to locate his phone. When told to use the popular Find my iPhone service, the actor replied that his phone's battery was flat, writing, "It's dead! Waaaah."

Just four minutes after thanking fans for their help, he took to Twitter to announce his belongings had been found.

"OMG (oh m God) It was just found! That was freaking fast. Thanks for helping me find it!!" he posted.

He then tweeted a photo of himself with those who had found his wallet and phone, and wrote, "Thank Amenaide and Catherine Brown for finding my phone and wallet! Thanks Brown family for your decency!"

The Avengers star was lucky to have found his belongings as a winter blizzard engulfed New York over the weekend (23-24Jan16), dumping vast amounts of snow across the city.

Storm Jonas has already lead to Broadway shows being cancelled, and residents have been warned to stay indoors until the storm passes.

Ruffalo is not the first celebrity to use social media to find lost belongings. Tom Hanks posted back in October (15) that he had found a woman's student ID card while out walking in New York, and successfully returned it to the Fordham University student.