A SUPERMARKET boss has expressed concerns over CO2 shortages which could become a problem in the run-up to Christmas.

The hike in gas prices has resulted in two large fertiliser plants being forced to shut down, with one being in Cheshire.

This has caused concerns that food supplies could be affected as well as hospital procedures.

Richard Walker, managing director of Deeside-based Iceland food said these shortages could become a problem in the coming weeks.

He told BBC Radio 4’s Today programme that suppliers who are looking at some of the stock they hold and their just-in-time chains are suggesting this 'could become a problem over the coming days and weeks'.

He added: “This is not an issue that is months away, that is for sure.

“We are building up our stocks on key lines like frozen meat just to make sure we can deal with any unforeseen issue.

“At the moment we are fully stocked and our suppliers are OK, but we do need this sorted as quickly as possible.”

Taking to social media, Mr Walker said the potential products affected will be meats, packaged products including proteins, cheese and salads as well as carbonated drinks, long-life bakery items and canned/bottled beers.

He said the issue needs to be sorted 'quickly'.

He went on to say: "CO2 is essential for a wide range of food and medical uses. Yet 60 per cent of the UK’s supply comes from only two sites, owned by one foreign company, who have decided to close due to profitability. Surely matters of national security should be state-controlled?"