Stones were thrown at a bus carrying orangemen from Manorcunningham in Greysteel, while petrol bombs were thrown at police in Derrys Bogside.
Martin McGuinness condemned both incidents.
The bus, which was carrying people from Newtowncunningham, had windows smashed as it was hit with stones.
A number of windows in the vehicle were smashed, but no-one was injured.
Meanwhile police were attacked with petrol bombs and stones during trouble in Derry’s Bogside last night.
One of the city's most historic buildings was also petrol bombed and a pizza delivery van was hijacked and set on fire by youths at the bottom of Fahan Street.
An hour earlier petrol bombs were thrown at the Verbal Arts Centre on the nearby City Walls which took place around two hours after a small barricade was set on fire at the bottom of the Lecky Road Flyover.
No one was injured in any of the incidents.