According to the Roosevelt Island Operating Corp (RIOC):
Due to a vehicle accident(no injuries) by the RI Tram, there will be a delay in red bus service. Red Buses are currently being re-routed towards the East Roadway. An additional advisory will be sent when normal service resumes.UPDATE - At 8:05 PM RIOC reports:
Roosevelt Island Operating Corp Advisories Group
Service has resumed with residual delays. All roadways are open.