News at Seven-Thirty highlights: Strong Wind Signal Number 3 is in force; official death toll from riots in western Xinjiang region has been raised to 184; Australia is asking China for talks to discuss the detention of an Australian employee; 8 British soldiers have been killed in Afghanistan in a 24-hour period; Barack Obama arrived to a hero’s welcome in Ghana; hundreds of passengers were evacuated from a British Airways jumbo jet; Fernando Chui has outlined his election platform; experts say the youth drug abuse problem in HK may be even more severe than expected; Police staged an anti-drugs operation in Kowloon overnight; a fire broke out in a container storage yard in Tin Shui Wai.