Media playback is unsupported on your device

Gibraltar border queues 'necessary'

15 August 2013 Last updated at 12:16 BST

Spain has tightened its border controls with Gibraltar, prompting the UK to threaten legal action.

The Spanish government has said the row would not be resolved until a new artificial reef, installed by the Gibraltarians, was removed from the waters off the British territory.

The BBC's Tom Burridge reports from the queues at the Spain/Gibraltar border.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.