A wide stretch of the Orange Line between Downtown Boston and Jamaica Plain will be closed for more than a week beginning Saturday as the MBTA completes key infrastructure upgrades, authorities said.

The connected signaling system will allow the agency to more easily maintain schedules and respond to service disruptions more quickly.

WBZ-TV's Kristina Rex and meteorologist Jacob Wycoff have your top stories and latest weather forecast. Kiplimo also won the ...