China shares tumble more than 5%
Shares across Asia were largely lower on Monday with China's main share index leading the fall, BBC reported.
Markets opened the week after losses on Wall Street on Friday as well as weak manufacturing data from the world's second largest economy, China.
The Shanghai Composite tumbled 5.5% to 3,849.39 leading the region's trend.
Profit at China's industrial firms dropped 0.3% in June from a year earlier, the National Bureau of Statistics said on Monday,
IG market strategist Bernard Aw cautioned in a note that the surprisingly weak manufacturing data "added to worries that there could be further weakness in the Chinese economy, after the patch of recent economic data showed signs of stability".
Hong Kong's Hang Seng index traded 2.6% down at 24,476.03 points.
Shares in Gome, one of China's biggest retailers, dropped by 13% on the Hang Seng after the company said it would buy retail assets from its controlling shareholder partly by issuing new shares.