Authorities say 47-year-old Jason Archuleta robbed the Opus Bank on West Orangethorpe Avenue on Friday.
Witnesses told police they saw Archuleta throw cash on the ground and take off some of his clothing as he was running away. It appeared that a dye pack went off.
Officers quickly caught Archuleta behind a business near the bank.
If you have any information about the suspect or the robbery, you're urged to contact the Fullerton Police Department at (714) 738-6716.