Chief Executive John Lee says top Beijing official Xia Baolong has called on Hong Kong to tackle possible threats against national security. The CE also says Xia endorsed the work of the SAR government. He met the mainland official on a visit to the capital. Violet Wong reports:

Mainland authorities have described last year's economic progress as "very impressive" in the face of a turbulent external financial environment. The National Development and Reform Commission says the growth momentum is in line with Premier Li Keqiang's projection of a five percent growth in 2023 and that it has "full confidence" it can achieve this target. Kelly Yu reports from Beijing:

Former Housing Secretary Frank Chan says he finds it “exciting” and “challenging” to take on a new role as a member of the National People's Congress. Chan told RTHK during an exclusive interview that his priority was to win people’s hearts by “telling them the truth about our nation”. He spoke to Kelly Yu via a video link in Beijing:

The Labour Department says it has initiated dozens of prosecutions over a fatal crane collapse last September. The disaster at a construction site on Anderson Road killed three people and injured six others. The Housing Society, meanwhile, said all tower cranes which had been removed from the site after the accident would go back into operation this month following additional safety checks. It said the housing project was expected to be completed by 2026. Vanessa Cheng reports:

The Transport Commissioner says the government is considering tightening health check requirements for commercial drivers. It follows a traffic accident in Fortress Hill on Sunday, involving an 84-year-old taxi driver. Maggie Ho reports:

The Housing Bureau says it is looking into whether subsidised home rules need to be tightened amid reports that a suspect in the murder of socialite, Abby Choi, bought a government-subsidised flat despite also owning a luxury property worth tens of millions of dollars. Frank Yung reports:

A man who is accused of trying to help one of the suspects in the murder of model Abby Choi flee Hong Kong has appeared in court. He has been freed on bail ahead of his next court appearance in May. Violet Wong reports:

The ICAC has reported a 19 percent drop in corruption complaints last year. It says Hong Kong's graft situation remains well under control, as Maggie Ho reports:

The Hong Kong Bird Watching Society says the use of reflective materials in new infrastructure in the city is causing more birds to crash into buildings. The group recorded about 200 cases in the final three months of last year, and more than 90 percent of them were fatal. Surfaces made of glass can reflect natural landscapes and create an illusion for birds. The society's conservation officer, Wong Suet-mei, told Vanessa Cheng that requiring buildings to use anti-collision materials could help resolve the problem:

Over the weekend, United Nations members agreed for the first time on a unified treaty to protect biodiversity in the high seas, after two weeks of talks in New York. The high seas encompass nearly two-thirds of the ocean and almost half the planet's surface. Marine experts have described the agreement as "historic". Charles Clover is executive director of the Blue Marine Foundation:

A local activist has welcomed the finalisation of a 'high seas' treaty between United Nation member states which will pave the way for the creation of marine protected areas in international waters. Lydia Pang, interim head of Oceans Conservation at WWF Hong Kong, said unsustainable harvesting was having a negative impact on the world's biodiversity. She described as "ambitious" the treaty's target to protect 30 percent of the high seas by 2030. Pang told Janice Wong that countries still had to sign and ratify the treaty, and include it in their national legislation:

A new law to crack down on migrants arriving in Britain in small boats from Europe across the English Channel will be unveiled on Tuesday, with a senior minister saying "enough is enough". The British government has been promising to step up action to tackle the issue after the numbers making the perilous crossing soared to more than 45,000 last year. But refugee groups says government plans to deport migrants and ban them from re-entering the UK if they cross the Channel in small boats are unworkable and will leave thousands of people in limbo. RTHK's UK correspondent Gavin Grey told Vicky Wong more about what is expected in the legislation: