(NEWSER) – One sour note from today's celebration of Martin Luther King Jr.'s "I Have a Dream Speech": The bus carrying his family got into an accident afterward, reports TMZ. It doesn't appear any serious injuries were involved, though the driver was taken to a DC hospital. Witnesses say the driver had to slam on the brakes and swerve to avoid a vehicle that ran a red light. Passengers included MLK's 85-year-old sister and several grandchildren. One celeb note: Omarosa Manigault—yes, the Omarosa made famous in Donald Trump's Apprentice show—was aboard the bus and tweeted that she banged her head but is OK.