Mesa Police said Karla Janeth Jauregui, 21, was arrested at Arizona State University on charges of assault with a deadly weapon and armed robbery.

Jauregui, who is an ASU student, admitted to hitting a clerk at Name Brand Exchange in Mesa twice with a crowbar.

She said she did it because she was having financial problems.

The entire incident was captured on video via the 4 surveillance cameras installed in the store.

Video shows the woman walk up to the register to pay for some men's shirts.

According to witnesses, she handed the clerk a $20 bill, then pulled out the crowbar and hit the clerk.

When the clerk tried to stop her, the woman struck again, surveillance video showed.

Police said the robber escaped with more than $200 in cash.

The clerk may have broken her hand during the incident, but she is otherwise OK.

The owner of the store said she is thinking about installing a panic button system in the store.