Three people - including a police officer - were stabbed by a man wielding a knife at Manchester Victoria railway station. A man and woman in their 50s were attacked at about 20:50 GMT on New Year's Eve, Greater Manchester Police said. A British Transport Police officer was stabbed in the shoulder. The victims' injuries were described as "serious" but not life-threatening. A man has been held on suspicion of attempted murder.

Officers said counter terrorism police were leading the inquiry, but they were keeping an open mind on the motive. The officer, a police sergeant in his 30s, was released from hospital the next day. A witness said he heard the knifeman shouting a slogan criticising Western governments.

US Democratic Senator Elizabeth Warren has announced that she is establishing an exploratory committee to consider a presidential run in 2020. The move, the first by a high-profile Democrat for 2020, allows Ms Warren, 69, to ramp up her fundraising. In October, Ms Warren revealed the results of a DNA test she said proved her Native American heritage after she was taunted by President Donald Trump.

It immediately sparked speculation that she would run for the presidency. In a video address posted on social media on Monday, the progressive Massachusetts senator outlined her vision for a United States that she said would offer opportunities to all Americans.

North Korean leader Kim Jong-un has said he is committed to denuclearisation, but warned he will change course if the US continues its sanctions. He made the remarks during his closely-watched annual New Year's address. Last year's speech set the country on an unprecedented path of international diplomacy with South Korea and the US.

Mr Kim met US President Donald Trump to discuss denuclearisation in June 2018 but with few results so far. Last year's rapprochement came after a turbulent 2017 marked by North Korea testing missiles that could reach the US mainland and an escalation in rhetoric between Pyongyang and Washington with both sides trading insults and threats of nuclear destruction.

Doctors in Gaza and the West Bank have said they are battling an epidemic of antibiotic-resistant superbugs, a growing problem in the world's conflict zones, which could also spill over the Palestinian borders. The rise and spread of such virulent infections adds to the devastation of war, increasing medical costs, blocking hospital beds because patients need care for longer, and often leaving people whose injuries might once have been healed with life-changing disabilities.

Gaza is a particularly fertile breeding ground for superbugs because its health system has been worn down by years of blockade, and antibiotics are in short supply