<sod >The explosions occurred near a park in the city, which is 60 miles north of Tokyo, shortly after 11:30am (2:30am GMT), a spokesman for the fire service said.< eod>< sod > The explosions occurred in a car park near a park in the city, which is 60 miles north of Tokyo, shortly after 11:30am (2:30am GMT), a spokesman for the fire service said.< eod>