A mysterious blue backpack containing about $100,000 was discovered by a good-natured Burger King employee in California on Wednesday, New York Daily News reported. Police are now attempting to find out who left it there.

Assistant manager Sahista Bakawla spotted the backpack abandoned in a booth while cleaning the fast-food store, ABC's San Francisco station KGO reported. She wiped down the store's table tops several times and kept looking at the backpack, hoping someone would come back to fetch it.

"I twice cleaned, like two or three times cleaned the tables and it's still here," Bakawla, assistant manager of the San Jose, Calif., Burger King, told KGO-TV. "I waited until 3 p.m. and nobody came here."

After contacting the restaurant owner, they opened the bag to look for an ID but discovered a whopping pile of crisp $50 and $100 bills totaling $100,000 instead.

"I open the zipper, I see lots of money, cash money, $100 bills stack up like half the bag," owner Altaf Chaus told the station. "I said, 'Wow! Today's my birthday, this is my birthday gift!'" he added, joking.

But the thought only crossed his mind for a moment before he called the police, accoridng to TheBlaze.

"I've been in this country 26 years, and I worked two jobs for 15 years before I bought this Burger King," Chaus said. "So I'm a very hard working man. I don't want that money, maybe it belongs to somebody."

Along with the cash, San Jose police officers found candy, marijuana and a bank deposit slip in the bag, according to KGO.

Currently, they are working with the bank to find out who the cash belongs to, the station reported.