An Italian Carabinieri unit is expected in Congo Tuesday to investigate the killings of the Italian ambassador to Congo, an Italian Carabinieri police officer and their driver in the country's east. In the specific area of the attack, several armed groups are active including the FDLR, the Nyatura militia and remnants of the former M23 rebels. AdIt’s unusual for a top diplomat to be targeted in eastern Congo, but attacks have been rising, Pierre Boisselet, coordinator of the Kivu Security Tracker, said. “Usually violence by armed groups targets civilians,” or civilians are hurt amid clashes between armed groups and the army. More than 2,000 civilians were killed last year in eastern Congo provinces by armed rebel groups, according to U.N. reports last week.

MEXICO CITY Gunmen burst into an unregistered drug rehabilitation center in central Mexico and opened fire Wednesday, killing 24 people and wounding seven, authorities said. Apparently the attackers shot everyone at the rehab center. Diego Sinhue Rodrguez Vallejo said drug gangs appeared to have been involved. It was one of the deadliest attacks on a rehab center since 19 people were killed in 2010 in Chihuahua city in northern Mexico. Mexico has long had problems with rehab centers because most are privately run, underfunded and often commit abuses against recovering addicts.