Roger Federer overcomes windy conditions to beat Andreas Beck and reach the US Open third round, but seeds Nikolay Davydenko and Maran Cilic crash out.
The government of Mozambique says price rises which have led to deadly riots are "irreversible", as Maputo residents are urged to continue their protests.
The Mexican army says it has killed 27 suspected drug gang members in a clash near the US border, hours after the country's president insisted the war against the cartels would continue.