A customer buys ketchup prepared by Heinz Co in Los Angeles, California, U.S., March 22, 2018. REUTERS/Lucy Nicholson

LONDON (Reuters) - U.S. consumer products group Heinz and British supermarket chain Tesco [TESCO.UL] on Tuesday both recalled baby food sold under their own brands due to finding metal objects in packets.

The Food Standards Agency (FSA) said more than 500 “Perfect Balance Baby” Huyts Baby Ketchup packets contained small metal objects, but there had been no reports of injuries.

Heinz’s Food for Kids Baby Ketchup and Rolls Baby Ketchup products were also being recalled after rubber rings that were not original packaging material were found in packets of those products.

The FSA said there had been one report of “serious harm” to a child due to a small, metal object found in a packet of Huyts Baby Ketchup.

Heinz offered its “deepest apologies to those who have been affected.”

The FSA said an inspection of Huyts premises last week had uncovered the items.

Huyts could not immediately be reached for comment, but Heinz said: “We take food safety and product quality very seriously and the safety of our consumers is our number one priority.”

Tesco said in a statement: “We would like to apologise to any customers who have purchased these products. We have removed them from sale and are in contact with our suppliers to understand how they got there.”