A security guard shot a robbery suspect outside an Arlington bank Tuesday morning.
It happened just before 11 a.m. at the Bank of America in the 4000 block of W. Green Oaks Boulevard.
Police said the man tried to rob an armored truck that arrived to service an ATM.
The suspect used pepper spray on one security guard so another guard shot him.
He was taken to a nearby hospital in serious condition.
The guards were not seriously hurt.