BEIJING, April 13 (Reuters) - China, the world's top buyer of soybeans, imported 6.85 million tonnes of the oilseed in March, customs data showed on Thursday, up 7.9% on the same period a year earlier.

The arrivals for the first three months of the year came to 23 million tonnes, up 13.5% on a year ago. (Reporting by Dominique Patton; Editing by Muralikumar Anantharaman)