The scenes you see here are unprecedented.An estimated 200 Africans most of them Nigerian gathered in front of a Guangzhou police station on Wednesday.They blocked traffic. They shouted in the streets. It is believed to be the first protest by foreign nationals in China, in a country where demonstrations are rare.What triggered the protest is the bloody injuries two Nigerian men suffered while attempting to evade police visa checks.The two men were at the Tangqi Foreign Trade Clothes Plaza when plain clothes officers showed up to check visas on Wednesday.The men attempted to flee, and the man you see here was seriously injured attempting to jump from the second floor of this building.As of last night, he remained hospitalized and his situation was serious.Inexplicably, the protestors decided to take him to Guangquanjie police station instead of hospital. It was only later that an ambulance was called.The man's brother told a South China Morning Post reporter on Thursday: "I do believe he would have been better if he had been sent to the hospital earlier."The issue of visas is source of frustration for Africans living in Guangzhou, many of whom are involved in the textile trade.As the government prepares for the 60th anniversary of the founding of the People's Republic of China, visa extensions have been difficult to come by.An estimated 20,000 Africans are living in Guangzhou, and a lack of proper documentation means more confrontations with police could be in the offing.[/*][/list]