One person in England has died linked to the ongoing E.coli outbreak, the UK Health Security Agency (UKHSA) has said.

In a statement, the UKHSA confirmed that one person with an "underlying medical condition" had died in May after contracting the shiga toxin-producing E.coli (Stec).

The Government body said it had identified two people in England who died within 28 days of infection with Stec.

“Based on the information available from health service clinicians one of these deaths is likely linked to their Stec infection,” it said.

One person has died after a major E.Coli outbreakPA

“Both individuals had underlying medical conditions. The deaths occurred in May.”

Health officials have been working to track down the source of a current outbreak, which is thought to be related to some pre-packed sandwiches containing lettuce.

This particular strain of the bacteria can make people seriously unwell.

As of June 25, there have been a further 19 cases of Stec, bringing the total number of confirmed cases to 275 in the UK.

Three companies have pulled their products from major supermarkets and retail chains over fears of contamination.

Darren Whitby, Head of Incidents at the Food Standards Agency said: "Earlier this month, we confirmed that several sandwich manufacturers had taken precautionary action to withdraw and recall various sandwiches, wraps, subs and rolls after food chain and epidemiological links enabled us to narrow down a wide range of foods to a type of lettuce used in sandwich products as the likely cause of the outbreak.

"This remains a complex investigation and we continue to work with the relevant businesses and the local authorities to ensure necessary steps are being taken to protect consumers. Although we are confident in the likely source of the outbreak being linked to lettuce, work continues to confirm this and identify the root cause of the outbreak with the growers, suppliers and manufacturers so that actions can be taken to prevent a re-occurrence."