The stabbing occurred at Iguana's Bar located on the 8500 block of Rosemead Boulevard around 12:10 a.m.
Investigators say a fight broke out between several people. That's when they say a 65-year old man stabbed a 28-year-old woman in the stomach and two men, ages 32 and 48.
The suspect fled the bar following the stabbing. He was described as a Hispanic man standing around 5 feet 5 inches tall and weighing about 180 pounds.
The suspect was last seen driving north on Rosemead Boulevard in a blue Honda Accord.
All three victims were transported to the hospital in stable condition and are expected to be OK.
Anyone with any information on the stabbings was urged to contact the Pico Rivera sheriff's station at (562) 949-5540 or Crime Stoppers at (800) 222-8477.
CNS contributed to this report.