Austin police are investigating a bank robbery that happened at the Austin Telco Federal Credit Union in North Austin. Around 11 o'clock am, officers were called out to the 1100 block of Center Ridge Circle. Police say a man walked in, showed the teller a gun, and demanded cash. The teller gave the suspect an undisclosed amount of cash and he took off. No customers were in the bank at the time of the robbery and luckily, no one was hurt. Police later found a person who matched the description and they have detained the man for questioning.