Tuesday’s top stories: Sharp rise in sexual images generated by primary school pupils; tributes to Irish woman killed in New York bar

Jack Lisowski claims a 6-2 win over world champion Luca Brecel as the 50th edition of the Masters gets under way in stunning fashion at Alexandra Palace.

The defence secretary was warned the Kremlin was aware of his travel plans, reports say.

Nightingale was the station’s first female presenter and stayed on air for more than 50 years.