This Thursday (25), American authorities carried out an operation to capture the 40-year-old shooter who killed 22 people and injured about 50 in the United States.

Hundreds of police are searching for the shooter

Robert Card, an army reservist, opened fire at a bowling alley and bar-restaurant in Maine (USA). Hundreds of police have been mobilized, roads are closed, and four American cities are on alert.

US authorities are looking for an army reservist – Joseph Prezioso/AFP

The police operation to capture the shooter closed streets and highways in four cities: Lewiston, Bowdoin, Auburn and Lisbon – Joseph Prezioso/AFP

Police found an abandoned white pickup truck just over 10 kilometers from Lewiston – Joseph Prezioso/AFP

A large number of police were mobilized to carry out the searches – Joseph Prezioso/AFP

Hundreds of police are working across Maine to find the shooter – Joseph Prezioso/AFP

Armored vehicles are also helping police teams searching for the shooter – Joseph Prezioso/AFP

Photos released of the suspect show a man with a beard, wearing a brown jacket, blue pants, brown shoes and carrying a semi-automatic rifle – Joseph Prezioso/AFP

The new massacre joins a long list of shootings that frequently rock the United States – Joseph Prezioso/AFP