Day in pictures - 23 September

23 September 2013 Last updated at 16:58 BST

Photos of the day from 23 September 2013
Members of the public admire an installation artwork by Ayse Erkmen entitled
Members of the public admire an artwork by Ayse Erkmen called Intervals at the Barbican Centre in London. The 11 large theatrical backdrops move up and down on an automated system.
People enjoy the emerging Autumn colours at the Westonbirt National Arboretum near Tetbury, Gloucestershire.
People enjoy the emerging autumn colours at the Westonbirt National Arboretum in Gloucestershire.
Microsoft's Surface Pro 2 is seen during the launch of their Surface 2 tablets in New York
Microsoft's Surface Pro 2 is seen during the launch of their Surface 2 tablets in New York City in America.
Angela Merkel surrounded by Germany flags
German Chancellor Angela Merkel is celebrating after winning the country's election. She's the leader of the Christian Democratic Union, and this will be their third four-year term in power.
Justin Bieber performs live at the Padang Stage on Day 3 at the closing party of the Singapore Formula One Grand Prix on September 23, 2013 in Singapore.
Justin Bieber performs live at the closing party of the Singapore Formula One Grand Prix which took place at the weekend - Sebastian Vettel won.
Boy climbs out of the window as flood water rises.
This boy is having to climb out of the window to escape flood waters as heavy monsoon rain hits his home town of Metro Manila in the Philippines in East Asia. The storm has been getting worse over the weekend because of typhoon Usagi, which is being described as the most powerful storm this year.