Panaji (India) (AFP) - Indian police said Wednesday they had arrested a local man over the killing of a Nigerian in Goa, whose death has triggered protests in the holiday state. The suspect, who is in his mid-30s, was detained on Tuesday night in north Goa, accused of being part of a gang who stabbed the Nigerian to death last week, a senior police official told AFP. The arrest came after Nigeria told India on Tuesday that it feared for the safety of its nationals in Goa and called for immediate action against those behind the killing. Following the demonstration, which blocked Goa's main highway for several hours, Goa's Chief Minister Manohar Parrikar asked police to track down Nigerians living illegally in the former Portuguese colony so they could be deported.