The FBI has released a new photo of New Orleans terrorist attacker Shamsud-Din Jabbar as they continue to investigate what motivated his New Year's attack on Bourbon Street.

At least five people are now known to have been killed in the vehicle-ramming attack on a Christmas market in the German city of Magdeburg on Friday.

A Saudi Arabian doctor was reportedly arrested after allegedly driving a car into a crowd at a Christmas market in Germany.

Abdulmohsen, a 50-year-old doctor from Saudi Arabia, had expressed anti-Islamic views and described himself as a Saudi dissident, an official said.

German President Frank-Walter Steinmeier is set to visit the eastern city of Magdeburg on Thursday, nearly four weeks after a deadly attack at the city's Christmas market. Steinmeier is scheduled to lay a wreath at St John's Church,

The man who is suspected of committing the New Years Day vehicle-ramming attack in New Orleans searched online for information about the Christmas market car-ramming attack in Germany, just hours before carrying out his own attack on Bourbon Street, according to the FBI.

Shamsud-Din Jabbar, the driver behind the Bourbon Street attack on New Year’s, researched New Orleans and the deadly Christmas market attack in Germany in the hours and weeks before the attack, the FBI said in an update Tuesday.

Before plowing a pickup truck into a crowd of New Year’s revelers in New Orleans, killing 14 people, the man who carried out the Islamic State group-inspired attack had researched how to access a balcony on the city's famed Bourbon Street and looked up information about a similar recent attack at a Christmas market in Germany,