NIAMEY—Unidentified armed men killed seven border police and four National Guard members in separate attacks in different parts of Niger, the government said on Wednesday. Both of the attacks were on Tuesday—one on a police post in Petelkole, on the western border with Burkina Faso, and one on a National Guard position in Djado, in…

OTTAWA—A new security watchdog report says long-standing, systemic problems hampered co-operation between Canada’s spy service and national police force on the investigation of an extremist threat. The National Security and Intelligence Review Agency points to chronic information-sharing challenges for the Canadian Security Intelligence Service and the RCMP. The review agency looked at how CSIS and…