SIOUX CITY---TENSE MOMENTS SHORTLY BEFORE EIGHT O'CLOCK THURSDAY MORNING WHEN A SUSPICIOUS PACKAGE WAS FOUND AT THE FEDERAL BUILDING LOCATED AT 320 - 6TH STREET IN DOWNTOWN SIOUX CITY. 

BUILDING SECURITY FOUND THE PACKAGE AND REPORTED IT TO LOCAL AUTHORITIES. 

SIOUX CITY POLICE CAPTAIN LISA CLAEYS SAYS LAW ENFORCEMENT, FIRE AND AMBULANCE SERVICES RESPONDED TO THE CALL. 

6TH STREET AND OTHER STREETS AROUND THE FEDERAL BUILDING WERE BLOCKED OFF AND THE BUILDING WAS EVACUATED, AS WERE SEVERAL NEARBY BUSINESSES. 

IT WAS LEARNED THAT THE PACKAGE WAS EMPTY AND PRESENTED NO THREAT, AND THE ALERT WAS CALLED OFF.