On Tuesday afternoon, the City of St. Louis conducted a test of the emergency siren system, days after the sirens failed to go off in some areas before the May 16 tornado.

Anger continued to mount on Tuesday. City officials railed against Spencer. Families of those killed in the tornado said they believed the sirens could have saved lives.

Sen. Josh Hawley (R-MO) called on the Federal Emergency Management Agency to deliver critical assistance to St. Louis, which was devastated by an unprecedented tornado that killed more than a dozen people Friday.

St. Louis Mayor Cara Spencer acknowledged that a mishap prevented tornado sirens from warning residents about a deadly tornado.

The tornado that tore across the St. Louis area Friday reached EF3 intensity and a mile in width, the National Weather Service said after a damage survey.

Before-and-after images highlight the damage to St. Louis, days after an EF-3 tornado tore through the city, leaving five people dead.

Since Friday’s deadly storm, Nelson said 6,000 claims have already been made. She said several insurance companies brought in additional people to help victims file their claims

NWS survey crews surveyed damage from Monday night's storms. Here's how many tornadoes they've confirmed so far.

The 23-mile-long twister claimed the lives of five people and caused over $1 billion in damages in the St. Louis region on Friday.