Saudi Arabia says four of its soldiers have been killed in clashes with Yemeni rebels who crossed the border into Saudi territory. The assistant defence minister said Saudi forces destroyed the rebels, who tried to occupy a border village.

The European Court of Human Rights says British anti-terror legislation, allowing police to search people without reasonable suspicion, breaches human rights. The case was brought by two people who were stopped by police on the way to a demonstration in London in 2003. Here is Danny Shaw.

This is a strongly worded ruling from the European court that is likely to have far-reaching implications for the way British police use anti-terrorism stop-and-search powers. The measures enable officers to search anyone for terrorist material within specially designated areas. The court said the powers in the 2000 Terrorism Act were not sufficiently circumscribed, and did not contain adequate legal safeguards against abuse. It said there was a risk they could be misused against demonstrators and those from ethnic minority groups.

This is the World News from the BBC.

Russia has announced its biggest fall in gas production for 25 years. Gazprom, the energy giant that supplies three quarters of Russian gas, saw its output falls 16%. A spokesman blamed the global economic downturn for reduced demand in Russia and abroad.

The government in Venezuela is beginning power cuts in large parts of the country to tackle an energy crisis caused by water shortages. The electricity minister said the cuts, lasting up to four hours every other day, would prevent water levels at Venezuela's main hydro-electric dam from falling too low. Drought has affected the flow of water into the reservoir.