moscow u.s. embassy moscow accuse russian authorities monday bar diplomatic staff property outskirts moscow early agree grant access midday tuesday retrieve belong russian foreign ministry official quote state news agency ria say u.s. embassy send truck without first obtain permit official say require law property conservation area property picturesque spot bend moskva river northwest capital lease u.s. embassy staff use recreation moscow say take back part retaliatory measure washington approve fresh round sanction russia reuters tv cameraman outside country residence know russian dacha saw five vehicles diplomatic license plat include truck arrive site say deny entry embassy spokeswoman say line russian government notification u.s. mission russia suppose access dacha noon aug. access day today yesterday say refer russian government explain not russian foreign ministry official identify say americans blame fail obtain necessary permit accuse russia block access amount pre-meditated provocation ria news agency cite official say u.s. embassy moscow say lock diplomatic property