Boston blasts condemned

Athletics' world governing body and the Olympic movement on Tuesday condemned the twin bombings at the Boston Marathon, describing them as an attack on the spirit of human achievement and benevolence.
"My thoughts and those of all the Olympic Movement are with the victims, their friends and their families today," the president of the International Olympic Committee (IOC) Jacques Rogge said in a statement.
"A marathon is a special, almost magical event that unites different communities with one shared goal and I am sure that this incident will serve to bring together all those who took part and all those who support such an event, with a common resolve."
The International Association of Athletics Federations (IAAF) also described the blasts, which killed three and injured more than 100 on Monday, as "a mindless attack".
"This ghastly and cowardly attack strikes at the very core of the freest of human activities," the president of the sport's world governing body, Lamine Diack, said.
"Whether as a fun runner or elite competitor, road running exemplifies the honesty of basic human movement, strength and resilience."
Diack and other senior officials in athletics also vowed to support race organisers.
Reuters adds from Moscow, Russian authorities have promised tougher security measures at August's World Athletics Championships after explosions near the finish line of the Boston Marathon.
"The security arrangements will certainly be reviewed after what happened in Boston," Russia's athletics chief Valentin Balakhnichyov told Reuters on Tuesday.
"Security has always been of the highest standard at all our sporting events but, no doubt, we will take into account the latest events and how it was done."
The Boston blasts on Monday appeared to go off near where spectators were standing behind roadside barriers.
Russia will host the Winter Olympics in Sochi next February and the 2018 soccer World Cup.
Meanwhile, police and officials in London said on Tuesday that the London Marathon would go ahead as planned in the British capital this Sunday.
Sports Minister Hugh Roberston said he was confident of security arrangements for the event and encouraged people to attend as a show of solidarity with the US city.
The 26-mile (42 km) London Marathon will attract 36,000 runners, among them Britain's double Olympic champion Mo Farah, starting at Greenwich Park and winding through city landmarks before finishing at the Mall.
London Mayor Boris Johnson told reporters while on a visit to Dubai: "Obviously what happened in Boston was shocking and horrific and our thoughts are very much with the victims and their families."
In Germany, Hamburg's annual marathon will go ahead as planned on Sunday after German police and security officials said they saw no increased risk for the event, organisers said.