the blast occurred near the salton ahmed square on tuesday morning. the historic area includes the blue mosque and is unesco world heritage site. in january of last year, a female suicide bomber blew herself up at a police station in the district, killing a police officer and wounding another. in october, a bomb attack in ankara killed more than 100 people. police suspect the islamic state militant group was involved. >>> we'll have more details for you here on "newsline." >>> investor concerns over china's financial markets and economic outlook are fueling volatility in other asian benchmarks. gene otani joins us from the business desk. gene? >> thanks, james. >>> the sell-off is continuing here in japan after a three-day weekend. the nikkei average hit a 3.5-month low on tuesday. mayu yoshida at the tokyo stock exchange has the details. what did you see today? >> the stock sell-off is unstoppable here. it's not just china but crude oil prices hit sentiment. investors are worried that the stronger yen would weigh on japanese company's earnings this y