A 6.3-magnitude earthquake struck northern Japan on Friday, the country's weather agency said, but no tsunami warning was issued and there were no immediate reports of damage.

Rail operator East Japan Railway suspended shinkansen services as a precaution, disrupting one of the country’s busiest transport networks while safety checks were conducted.

A 6.3-magnitude earthquake struck northern Japan on Monday, the country’s weather agency said, but no tsunami warning was issued. The quake hit at 8:22 p.m