Jailed Russian opposition leader Alexei Navalny has been taken to hospital after a severe allergy attack, his spokeswoman said. Kira Yarmysh said on Sunday that Mr Navalny, who was sentenced on Wednesday to 30 days in jail for calling for Saturday's unsanctioned anti-government protest, was taken from a Moscow prison to a hospital in the morning. Ms Yarmysh said Mr Navalny, who did not have any allergies before, arrived at the hospital with severe facial swelling and red rashes on his skin. Mr Navalny galvanised the anti-government protesters who rallied all day Saturday against the exclusion of independent candidates from the September 8 ballot for the Moscow city council. A Russian group that monitors police arrests said on Sunday that nearly 1,400 people were detained in a police crackdown on Saturday's protest, the largest number of detentions at a rally in the Russian capital this decade. A day after the protest, Russian President Vladimir Putin led Russia's first major naval parade in years. Mr Putin on Sunday morning went aboard one of the vessels taking part in the Navy Day parade in St Petersburg, on the Gulf of Finland. The parade, the biggest in years, included 43 ships and submarines and 4,000 troops. Putin is spending the weekend away from Moscow, the Russian capital. Police used batons on the protesters as they tried to gather outside city hall on Saturday. The EU in a statement denounced the "disproportionate use of force against peaceful protesters", which it said undermined "the fundamental freedoms of expression, association and assembly". After the rally last week, investigators raided the homes and headquarters of a number of disqualified candidates. Several would-be candidates were detained before or during the meeting on Saturday. Among them was Ilya Yashin, who called for another protest next weekend. This was the highest number since mass demonstrations in 2012, when tens of thousands protested Mr Putin's return to the Kremlin after four years as prime minister. The new protests come amid wider public anger over declining living standards that has hit Mr Putin's approval ratings.