Image copyright Getty Images Image caption Tesco to drop 24 hour shopping in 76 shops

Tesco is ending 24-hour shopping at 76 of its stores - around one in five of those currently open around the clock.

The company says the growth of online shopping means that certain shops had few customers during the night.

Normal night time activities - such as refilling shelves - will continue in the supermarkets so Tesco says the impact on employees will be "minimal".

The move is Tesco's latest effort to turn around its business which has been hit by challenges on several fronts.

The outlets affected will close between midnight and 6am and four hundred staff will be "affected".

Tesco says it will do its best to make sure all staff affected are "found a new position either in their existing store or stores local to them".

The outlets include those in Mickleover Superstore, Derbyshire, Flitwick Superstore in Bedfordshire and Dereham Extra in Norfolk.

There are currently about 400 Tesco stores open 24 hours a day.

"It makes much more sense for colleagues at those stores to focus on replenishing the shelves instead and making sure they're fully stocked when they open their doors at 6am," said Tesco retail director Tony Hoggett.

This is the latest step in chief executive Dave Lewis' shake-up of the supermarket's business. Since he joined the company in September 2014 he has put Tesco's focus on price cuts and putting more staff in stores in an attempt to revive the company's fortunes.

Tesco's problems

Accounting scandal revealed in autumn 2014. Serious Fraud Office investigation still underway

Under price pressure from discounters like Aldi and Lidl

Decline in market share

Reports its worst-ever results in April 2015 with a annual pre-tax loss of £6.4bn. Loss mainly due to falling property values, plus changing shopping habits and rise of discounters.

These are the branches that will no longer be 24 hour: