Prime Minister David Cameron has tweeted:
I'm appalled by the murder of a Palestinian teenager. The loss of four boys this week is a terrible reminder of the need for lasting peace.
More top news
With a record number of pensioners still in employment, ITV's Tonight programme asks why they do it and what it means for the UK.
Lord Hain has raised concerns that British financial institutions in South Africa could have been used as conduits for laundered money.
People could suffer vision loss or infection from the lenses, which are often sold illegally online, in shops and on market stalls.