The U.S. Federal Bureau of Investigation is offering up to a $250,000 reward for information leading to the arrest of an animal rights activist wanted for the 2003 bombings of two biotechnology companies in California.

Daniel Andreas San Diego, the man in question, allegedly targeted the Chiron company in Emeryville on Aug. 28, 2003, with two pipe bombs. Then, on Sept. 26, he targeted the Shaklee Corporation in Pleasanton with two bombs, one filled with nails. None of the bombs caused any fatalities.

According to “ America's Most Wanted,” a TV program in the U.S. that focuses on helping police catch wanted criminals, the FBI says the alleged terrorist planted the bombs because he believed the companies had ties with labs that use animals for testing medications and other products.

In a press release, authorities say they believe San Diego is in Costa Rica but they don't say why.

“It is probable that San Diego lives and works in Costa Rica, with U.S. citizens or people who speak English,” the release states. “He's known as an animal rights extremist, is linked to animal rights groups in the U.S. and he could be connected to groups of a similar nature in Costa Rica.”

The information numbers listed to call with information is the FBI in Panama, 507-207-7000, and the U.S. Embassy in San José, 519-2000.