Based on the search results, there are no specific incidents or events that happened on the Red Line today. However, there are some alerts and service changes that are currently in effect or upcoming. These include:

• Shuttle buses replacing Red Line service between Ashmont and JFK/UMass through October 29 due to track work.
• The transfer tunnel elevator at Roosevelt (Red, Orange and Green Lines) is temporarily out-of-service due to upgrading the elevator hydraulic cylinder.
• The platform elevator at Wilson (Red, Purple Lines) is temporarily out-of-service due to station upgrades.
• The elevator at 69th (Red Line) is temporarily out-of-service.
• Red Line trains will operate on the same track between Cermak-Chinatown and Grand, resulting in boarding changes and minor delays.
• Red Line trains will operate on the same track between 79th and Garfield, resulting in boarding changes and minor delays.
• The Winona entrance/exit to the Argyle Red Line station is temporarily closed. Please use the Foster entrance/exit, located one block north of the Winona entrance. The Foster entrance/exit to the Argyle Red Line station is also temporarily closed. Please use the Winona entrance/exit, located one block south of the Foster entrance.

It is important to check for updates and alerts before traveling on the Red Line to stay informed about any changes or disruptions to service.