Turkey's Foreign Ministry says it has summoned the Russian ambassador in Ankara to complain about protests against Turkish missions and businesses in Russia following Turkey's downing of a Russian jet. A Foreign Ministry statement said Thursday that Turkish offices had come under what it called physical attacks disguised as protests. The statement said Turkey had warned Russian authorities to urgently increase protection for the embassy and other Turkish interests. Protesters in Moscow hurled eggs and stones at the Turkish Embassy on Wednesday, breaking windows in the compound. Police cleared the area and made some arrests shortly after the protest began.