US cereal maker Kellogg has increased its full-year earnings guidance after revealing a 9% rise in second quarter earnings to $259m.

Kellogg said that full-year earnings would be $2.30-$2.33 a share instead of its initial forecast of $2.28-$2.32 a share.

Net sales in the quarter rose 8% to $2.6bn, with US sales up 8.9%.