At least five officers were injured. One policeman was hit with a glass bottle and another by fireworks, according to St Paul police.
A special taskforce formed on Saturday to probe the gruesome killing of two Indian doctoral students at their Louisiana State University apartment has launched a massive manhunt for three suspects described as "black men".
At least three police officers are feared dead and several others wounded near a shopping centre after a shooting in Baton Rouge, in the United States. The victims may include police officers and sheriff's deputies.
Image is being defined as iconic and a powerful image of the ongoing struggle between law enforcement and black Americans.
The gunman, identified as 29-year-old Gavin Eugene Long, dressed in black and armed with a rifle, shot the police officers in an "ambush-style" attack on Sunday.
The winners of the 60th annual World Press Photo Contest have been announced. The winning shot was taken by Turkish Associated Press photographer called Burhan Ozbilici, with an image he has simply titled An Assassination in Turkey. Showing Mevlut Mert Altintas shouting after shooting Andrei Karlov, the Russian ambassador to Turkey, at an art gallery in Ankara, Turkey, on December 19 2016.
'The year in pictures' treks across the globe, looking back on the moments that shaped 2016. From the United States presidential race, to demonetisation in India to the refugee crisis, the news has kept pouring in. Here are our top 50 moments from the world.