NEW ORLEANS – Arrests have been made in the violent beating of two New Orleans tourists.

Authorities in the Crescent City said two people have been arrested while two others remain at large in the violent beating of two tourists during a robbery Saturday night in the French Quarter, reported Fox News.

Joshua Simmons, 18, (pictured left) was arrested early Tuesday morning. He was booked on the charge of second-degree robbery. The crime carries a maximum sentence of 40 years in prison, police said.

According to New Orleans police, the main aggressor in the brutal attack on two Massachusetts men was Dejuan Paul, 21, (pictured right). He turned himself in Monday. He also was booked on the charge of second-degree robbery.

In surveillance video released of the attack, one of the victims is seen being punched by one of the assailants from behind. That particular suspect was identified by police as Paul. The victim was knocked unconscious in the attack.

He is then seen lying motionless facedown on the sidewalk. Consequently, blood begins to pool around his body and one suspect goes through his pockets.

The other victim was tackled and robbed, but not knocked unconscious, according to the report.

The victims were identified as James Curran and Tim Byrne. They were in town to attend the General Assembly of the Unitarian Universalist Association. It is the annual meeting of the liberal religious association, Boston 25 News reported. Byrne remains hospitalized in critical condition.

Officials have also obtained warrants for the two remaining suspects in the assault and robbery. They have been identified as Nicholas Polgowski, 18, and Rashaad Piper, 20.

(Photos New Orleans Police Department)