Chinese Foreign Minister Qian Qichen appealed to Taiwan for reunification on the eve of National Day. 'No force can stop the process of the reunification of 'One China',' Mr Qian said in a joint reception organised by the Taiwan Affairs Office, Hong Kong and Macau Office and the Office for Overseas Chinese Affairs to celebrate National Day. Mr Qian said if Taiwan authorities really wanted cross-strait talks to be resumed, they had to stop their 'two-Chinas' manoeuvring internationally and implement direct links in trade, communications and transportation between the two sides of the strait. China has tightened security nationwide in the run-up to National Day festivities tomorrow. In Beijing, the authorities have increased the number of public security officers at Tiananmen Square. 'The strengthened patrol duty is to guarantee law and order during the national holidays. Public security officers will also selectively check on cars passing by the square,' the Beijing Municipal Public Security Bureau said. Traffic patrols have been increased, with the deployment of 593 extra officers and 180 motorcycle policemen for the holiday which began with the Mid-Autumn Festival. Meanwhile, at least 20 people variously convicted of theft, murder and kidnapping were executed yesterday, a common practice ahead of major holidays. Among them were three motorcycle thieves in Guangzhou. They had reportedly amassed 379,000 yuan (HK$353,796) from the theft and sale of 29 motorcycles. In the special economic zone of Shenzhen, 14 criminals were executed after a public trial and sentencing attended by more than 10,000 cheering people.