Around 4,500 staff at Tesco are set to lose their jobs in the latest round of redundancies at the UK's biggest supermarket.

The majority of workers will go from Tesco's Metro stores, with other positions going at some Express and larger stores, Tesco said.

Executives want to overhaul the Metro stores, which are bigger than Express stores but smaller than larger supermarkets, saying that shoppers tend to use them for top-up shops, rather than buying bigger baskets.

The company said in a statement: "The Metro format was originally designed for larger, weekly shops, but today nearly 70% of customers use them as convenience stores, buying food for that day."

READ MORE: Dundee IT expert sings virtues of speaking to people

The changes to stores will include fewer products in the back of the store, with more moving straight to the shop floor when they are delivered.

Staff will also be expected to be more flexible, working across different departments and adding more focus on keeping stock levels high during busy lunchtime rushes, among other tasks.

There will also be a "leaner management structure" and workers will be given headsets to communicate more easily throughout the stores, the company added.

Just Eat saw shares dip after it confirmed its £8.3 billion merger deal with fellow food delivery group

The move, which will create one of the biggest players in the fast-growing sector, valued shares in the company at 731p.

READ MORE: North Sea dealmaker ready to raise acquisition stakes 

The food delivery sector has become highly consolidated in recent years, with Just Eat snapping up rival Hungryhouse for £200 million last year.

Mike Evans, chairman of Just Eat, said: "The board believes that this is a compelling offer for Just Eat shareholders which will create a global leader in a dynamic and rapidly growing sector."

The merger is set to close by the end of 2019, after which Just Eat shares will be listed in London.

Shares in Just Eat were down 1.4% at 725.8p.

British engineering group Senior has revealed the fallout from Boeing's 737 Max production cut on its profits for the first half, but remained confident of achieving its annual targets.

The company, which provides components to aeroplane makers, said its revenue and margins had been hit by Boeing's decision to reduce the number of 737 Max aircraft from 52 per month to 42, instead of a planned increase to 57.

READ MORE: £4.5 billion cost of cyber attacks for small businesses revealed by FSB survey

The cutback followed the Lion Air and Ethiopian Airlines fatal plane crashes in October 2018 and March this year respectively.

Revenue was up 11% to £580.4 million in the six months to the end of June as the group offset the 737 Max impact with stronger sales on other civil and military programmes.

However, pre-tax profits dropped 16% to £26.5 million.