Security has been tightened in Beijing ahead of the annual plenary sessions of China's top legislature and political advisory body. Delegates from across the country are in the capital for meetings of the National People's Congress and the Chinese People's Political Consultative Conference. Kelly Yu reports from the capital:

A spokesman for the annual session of China's top advisory body says this year's meeting is of great significance, as he noted that the country's long-term economic development will be further strengthened. Vanessa Cheng reports from Beijing:

An increase in duty-free allowances and an expansion of multiple-entry visas for mainland visitors are among the proposals being put forward by Hong Kong's delegates to the two sessions. Wendy Wong reports:

A China expert says he expects the two sessions to focus on measures to stimulate the nation's economy. Philosophy professor Brian Wong, from the University of Hong Kong's Centre on Contemporary China and the World, told Kelly Yu that he did not think the meetings would result in dramatic changes to Hong Kong affairs:

A China economist says he thinks policies to support mainland youth will be announced during the two sessions. Youth unemployment hit a record high of over 21 percent in June before the figures were suspended for five months. New statistics came out in December, using a different calculation. Liu Baocheng, founder of the Centre for International Business Ethics at the University of International Business and Economics in Beijing, told Kelly Yu that another item to watch for would be the nation's economic growth targets:

Development Secretary Bernadette Linn says the government's plan to build a land reserve for housing should not be affected by the economic environment. She said this would be an important means to stabilise the property market in the long term. She also reiterated that the government was committed to starting the Kau Yi Chau Artificial Islands project within the current term. She was commenting after finance minister Paul Chan said during his budget speech last week that the massive housing plan would be postponed. Anne Chan reports:

Tourism minister Kevin Yeung has dismissed concerns that staging monthly pyrotechnic and drone displays in Victoria Harbour will become repetitive. The idea was introduced during the financial secretary's budget speech last Wednesday. Yeung said there would be a variety of themes to suit different seasons and festivals. Damon Pang reports:

The government's investment promotion agency says a new immigration scheme for investors has received a strong response, with more than 100 enquiries after it began accepting applications on Friday. Damon Pang reports:

Monday is World Obesity Day. The Hong Kong Association for the Study of Obesity is urging people, especially those of working age, to exercise more and eat healthier as more than 200 diseases are linked to obesity. Dr Andrea Luk, the association's president, cited government figures showing that more than half of Hong Kong adults were overweight or obese - that is 20 percent more than two decades ago. She told Chloe Feng that the biggest increase in obesity was among the working age groups:

Donald Trump has overwhelmingly won the Republican nomination in three more states, edging closer to becoming the party's official candidate in this year's election. Trump beat his rival, Nikki Haley, in caucuses in Michigan, Missouri, and Idaho - continuing his clean sweep, days before what is known as Super Tuesday. RTHK's Washington correspondent, Barry Wood, told Carol Musgrave that it would be a 'remarkable' political comeback if Trump secured the Republican nomination: