The UK failed to make the top 20 in any of the three subjects in international tests taken by 15-year-olds.
In 2009, the UK placed 16th in science, but this year only made it to number 21. However, the pupils' performance in maths and reading has improved.
- In 2009, the UK placed 25th for reading, today this rose to 23rd
- In 2009, the UK placed 16th in science, today this fell to 21st
- In 2009, the UK placed 28th in maths, today this rose to 26th
More top news
Several police were injured after violence erupted in Baltimore today after the funeral of a man who died in police custody.
Bournemouth all but sealed promotion to the top-flight for the first time in their history with a 3-0 win against Bolton.
Son of barrister hired by Lord Janner told ITV News his father once believed peer would have to face charges over child abuse allegations.