Russia’s top security agencies have offered contradictory explanations for heightened security measures around a billion-dollar property on the Black Sea, dubbed “Putin’s palace" by opposition leader Alexei Navalny. Faced with over 95 million views of Mr Navalny’s YouTube investigation into the residence, President Vladimir Putin had to issue a denial on Monday, insisting that neither he, nor his family own the property whose very existence enraged millions of Russians. Angry protests spread across the country’s 11 time zones on Saturday in response to the allegations about Mr Putin’s lavish lifestyle as well as the arrest of Mr Navalny who was locked up for violating the terms of his suspended sentence. The day after the politician was jailed, Mr Navalny’s team published the investigation into the property which detailed a web of its obscure owners as well President Putin’s close friends and relatives who have allegedly been pumping money into its construction and maintenance. The property, believed to be Russia’s largest private home, boasts a casino, private theatre and even a smoking room with a stripper pole. The waters along the coast are off limits for fishermen and the Kremlin security service, FSO, is known to be issuing permits for anyone wanting to get close, which has been seen as the ultimate evidence that President Putin does use the palace. Floor plans of the palace as well as rare photographs and 3D visualisations showing its opulent interior have become the butt of jokes and given rise to countless parodies and internet memes. Russian news outlet RBC on Wednesday quoted a statement from the country’s main intelligence agency FSB, explaining that it had to close the airspace over the property due to “growing spying activities of a number of neighbouring countries including NATO members.” The FSB, however, failed to comment on the fact that the no-fly zone was first established there in 2011. Separately, the FSO, whose job is to provide security to Russia’s top officials including the president, on Wednesday, denied that there are any facilities in the area under its protection.