By . Daily Mail Reporter . A mystery benefactor tweeting clues to hidden cash sparked a frenzy in Los Angeles last night, with hundreds of people swarming the area searching for dollar bills. Throngs of people scavenged through garden beds, searched under bus stops and, police say, caused a traffic nightmare, in Burbank as they hunted for envelopes of cash, according to NBC. Within an hour of the anonymous donor posting a clue on his Twitter account @HiddenCash, the area around the local shopping center was inundated with people. The unknown donor began their pay-it-forward scavenger hunt on May 22 in San Francisco, claiming they were a successful real estate investor who wanted to share their wealth. It is now spreading throughout the West Coast, with the donor promising to make it 'bigger and better'. Scroll down for video . Inundated: Hundreds of people swarmed the area around the Empire Center in Burbank, Los Angeles on Thursday night in search of hidden money, after a mystery benefactor dropped some location clues on Twitter . Huge hunt: Hundreds of people searched at bus stops, in rubbish bins and through gardens in search of the hidden cash in Burbank, Los Angeles on Thursday night . Overwhelmed: Police said the crowds in Burbank, Los Angeles last night caused traffic chaos . This week, the philanthropist began hiding money around Los Angeles, including several hundred dollars in Burbank found by three lucky winners. Chris Treichel and his co-worker found the first cash drop of $135. About 20 minutes later, 14-year-old Tatiana Ramirez spotted an envelope full of cash she said she wanted to put toward her grandmother's medical bills. Sean Zerbe and his friends found the last envelope of the night, and tweeted their victory photo from the car, according to KTLA-TV Channel 5. Lucky winners: Sean Zerbe (left) and Chris Treichel (right) were two of Thursday night's lucky winners, braving the crowds in Burbank, LA, to find the hidden moneyIn response to Thursday night's hysteria, the generous donor issued a safety notice on his Twitter account: 'Please walk and drive safely. A young woman ran right in front of my car a few days ago. I will do my best to pick locations that are safe, but please use common sense and caution,' they wrote. 'Please also be respectful to the locations themselves and surrounding businesses. And be kind and happy with each other, as that's what this is all about.' However the unknown giver also tweeted that he or she 'had no plans to stop' and wanted to 'keep getting bigger and better'. The game continues: The mystery benefactor announced on his Twitter Friday that he or she had no intention of stopping the pay-it-forward scavenger hunt . The donor has also chosen to remain anonymous, in case people who know him or her criticize the decision to give away so much money. 'This is my way of giving back to the community and also having fun,' the donor said. 'The bigger idea is just to give back, both financially and a sense of fun to the community that has made me wealthy.' Other winners . Winner: Twitter user Andrew Sarti directed his mom to find the hidden cash in Los Angeles today . Condition: The mystery benefactor has asked that winners post a picture on Twitter of them holding the cash they found, like these winners pictured left and right .
A wealthy real estate investor is anonymously stashing cash around California . Using the Twitter handle @HiddenCash, the benefactor tweets clues about where to find the money . The scavenger hunt began in San Francisco on May 22 and hit LA this week . Last night, huge crowds swarmed Burbank looking for crash . Police said the crowd caused traffic chaos and some damage . The mystery donor issued a public safety notice on his Twitter account but promised to continue the pay-it-forward scavenger hunt .