A 24-year-old Chinese student, who suffered an attack late Sunday, came to a hospital, where doctors established that he was in good condition and let him go. The North Africa country's national was hospitalized with a broken nose after he was robbed in the early hours of Tuesday.
Police are considering opening criminal cases into the attacks, the spokesman said.
A recent string of attacks on foreign students has cast a shadow over such Russian cities as St. Petersburg and Voronezh, about 310 miles south of Moscow, which have traditionally been popular destinations for foreign undergraduates.
Russia has recently experienced a wave of attacks on non-white foreigners, particularly in St. Petersburg, where several people with non-Slavic features have been attacked and killed.
A man from Mali and a nine-year-old girl of mixed Russian-African origin were stabbed to death in the city in early 2006. A student from Senegal was killed in April, and in September an Indian student was stabbed to death and a Sudanese national attacked.
Other fatal attacks in St. Petersburg in the past year have included the killing of a student from Cameroon in December and a Congolese student in September 2005.
