FILE - UN peacekeepers from Burkina Faso stand guard during a patrol through a neighborhood on the outskirts of Timbuktu, Mali. Hundreds of Malians are gathering in the northern desert town of Timbuktu, from Monday, March 31, 2014,
FILE - UN peacekeepers from Burkina Faso stand guard during a patrol through a neighborhood on the outskirts of Timbuktu, Mali. Hundreds of Malians are gathering in the northern desert town of Timbuktu, from Monday, March 31, 2014,

The U.N. says five Chadian peacekeepers have been killed and three wounded after being attacked in northern Mali.
 
A statement from the U.N. secretary-general's spokesman says the peacekeepers' convoy hit a roadside bomb and then came under fire from gunmen.
 
The attack took place Wednesday about 9 miles (15 kilometers) north of Aguelhok in the northern Kidal region. Seven other peacekeepers have been killed there so far this year.
 
U.N. Secretary-General Ban Ki-moon called it a "heinous attack'' and noted it would be considered a war crime under international law.
 
Islamic extremists have been attacking international peacekeepers and Malian soldiers working to stabilize the north three years after a French-led military campaign ousted jihadis from power.