Image copyright Burger King

Burger King UK will no longer give away plastic toys with children's meals, amid pressure to reduce plastic waste.

The fast food restaurant chain is also encouraging customers to bring in old promotional plastic toys, which it says it plans to melt to make other items.

The move comes after two Hampshire children petitioned the fast food giant and its rival McDonald's to stop giving away free plastic toys.

McDonald's said its customers would be able to choose between a toy and fruit.

Media playback is unsupported on your device Media caption Ella (left) and Caitlin McEwan said they were "amazed" by Burger King's decision

The petition, organised by Ella, aged nine, and Caitlin McEwan, aged seven, calling for companies to "think of the environment and stop giving plastic toys with their kids meals" has received more than half a million signatures.

The girls wrote: "Children only play with the plastic toys they give us for a few minutes before they get thrown away and harm animals and pollute the sea."

Instead, they suggested any giveaways could be made from sustainable materials.

Just hours before Burger King announced its change of policy, rival chain McDonald's in the UK said it had no plans to scrap its toy giveaways.

Instead, customers will be given the option of swapping the toy for a sachet of fruit if they wish.

McDonald's also plans a trial from early next year enabling parents to choose between a book or a toy.

"The gifts provide fun for many families and children. That's why we'll be running these trials, in order to give our customers a choice. They also can choose not to have a toy or gift at all," said Paul Pomroy, chief executive of McDonald's UK and Ireland.

But Burger King said it wanted to undertake "significant action" to address the issue of plastic waste.

The fast-food restaurant chain will provide bins in its restaurants to collect old toys. It said the move would save 320 tonnes of plastic a year.

Image copyright McDonald's Image caption McDonald's says it will still have toys in its Happy Meals, but that toys can be swapped for fruit

Helen Bird, from sustainability campaign group Wrap, described Burger King's response as a "bold move", welcoming the in-store collections since plastic toys cannot be recycled with plastic packaging at home.

Pentatonic, which makes consumer goods from recycled materials, is working with Burger King to recycle collected plastic toys into restaurant items such as trays and play areas.

Most toys today are made from three polymers - polypropylene, ABS and PET.

Pentatonic said no harmful gases would be released into the environment when these plastics were melted.

The melted plastic forms a continuous strip and can then be cut into beads or pellets which are used to manufacture new plastic products, the firm said.

"If we were to use recycled polypropylene to make a tray, instead of new plastic, total energy consumption would be reduced by approximately 88% and carbon emissions would be cut by approximately 70%," Pentatonic's chief executive Johann Boedecker told the BBC.