Security officer shoots armed suspect outside of federal courthouse in Philadelphia, officials say

PHILADELPHIA - The Federal Bureau of Investigation in Philadelphia is investigating a shooting involving a security officer outside of the federal court building in Philadelphia. 

A large police presence was spotted on the 700 block of Arch Street outside of the federal building around 9 a.m. on Tuesday. 

In a press conference held shortly after the incident, federal authorities released information about the shooting. 

Robert Clark with the U.S. Marshal's Service says a man parked a vehicle illegally on the west side of the courthouse in reserved parking when a security officer approached him. 

The man, believed to be in his 40s, got out of the vehicle and showed the officer that he had "sharp-edged weapons," Clark said. 

Officials did not specify the type of weapons the suspect had. 

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After giving multiple verbal commands to stop, the suspect continued towards the security officer and the officer fired multiple times, according to officials. 

Medics rendered aid and transported the suspect to the hospital for treatment, where he is in critical condition, according to sources.

Officials say the suspect could be charged with assault on a federal officer.

This is a developing story. Check back for updates.