https://cdnph.upi.com/ph/st/th/3771781016941/2026/upi_com/8cc2041777ae0341c37909ddc0879e1a/v1.5/Protests-grow-in-Belfast-after-man-arrested-in-knife-attack.jpg" /> Protests spread around Belfast on Tuesday after a Sudanese man was arrested on suspicion of attempted murder after a knife attack Monday night.