Airplane in keep out zone forces scrub of Starlink 11-8 launch 11 seconds before liftoff

Update 11:04 a.m. EST (1604 UTC): SpaceX scrubbed the launch and pushed to Monday
SpaceX is preparing to launch its next batch of Starlink satellites from Vandenberg Space Force Base. The Monday morning mission is carrying 27 second-generation Starlinks, a new record for this type of satellite. Liftoff of the Falcon 9 rocket from Space Launch Complex 4 East (SLC-4E) is scheduled for 7:13 a.m. PST (10:13 a.m. EST, 1513 UTC). SpaceX had to stand down from a launch attempt on Sunday when a plane entered the keep out zone 11 seconds before the planned liftoff. More

(Source: SpaceFlight Now - Jan 20)