What We're Following This Morning

Updated on May 10 at 7:27 a.m. ET

Clinton, Sanders do battle in West Virginia: The state votes today in its presidential primary. Polls show a tight race between the two Democrats.

The next president of the Philippines: Rodrigo Duterte is a tough-talking mayor who transformed a southern city with a populist combination of controversial tactics and a deft touch. His main rival, Manuel Roxas, admitted defeat.

Knife attack at German train station: One person has been killed and three others wounded at the Grafing station near Munich. Police said the attacker, who was detained, was a 27-year-old German national. They have not ruled out a political motive for the attack. Update: Joachim Herrmann, the Bavarian interior minister, said the suspect had a history of mental health and drug problems, and that the investigation so far, despite news reports, did not point to an Islamist motivation.

Fort McMurray wildfire, cont’d: Rachel Notley, the Alberta premier, says about 90 percent of the city has survived the devastation that prompted the evacuation of more than 80,000 people. “It is going to be made safe,” she said. “It is a home you will return to.”

News from last night here