Football's world governing body Fifa has agreed new anti-corruption reforms after independent experts issued a scathing assessment of its investigations into earlier scandals. They called Fifa's handling of bribery claims "unsatisfactory" and "unconvincing". Fifa's reputation was hit by claims of bribery and vote rigging during Mr Blatter's re-election last year and during the contests to host the 2018 and 2022 World Cup finals.

The Brazilian police have detained 77 people and confiscated an arsenal of weapons in a major operation against drugs traffickers. More than 600 police were involved in the operation. Here's Warren Bull.

Police in Brazil say this is the largest operation they've ever launched in the southern state of Rio Grande do Sul. In a series of raids in the city of Sao Borja, they seized weapons, money, vehicles and quantities of cocaine and marijuana. The police chief heading the operation said up to 13 different drug gangs had been identified in the city, including one with 40 members. Sao Borja is on the main transit route for drugs and contraband between Brazil and the neighbouring countries - Argentina, Uruguay and Paraguay.

An Italian physicist who last year challenged one of the foundations of modern physics has resigned. Antonio Ereditato and his team stunned the scientific world last September with claims they'd observed subatomic particles called neutrinos travelling faster than the speed of light. The result would have disproved Einstein's special theory of relativity, but later experiments called the results into question.