U.S. Capitol Police Chief Tom Manger says over 50 members of Congress just the past month have faced 'swatting' attacks, resulting in 700 investigations. 

Manger made the statement Wednesday during a Senate hearing. 

Swatting is essentially when a person makes a false police report of a danger or violent incident at the home of a foe, resulting in police, frequently as Special Weapons and Tactics, or SWAT units, rushing to the scene, which poses a risk of a shooting or some other potentially dangerous incident. 

There are 100 Senate and 435 House seats in Congress.

Some rank-and-file members of Congress have in recent years increasingly used a private security detail in public amid an increase threat risks. 

Manger also said department has just 20 agents to respond and handle such threats.