this is bbc news. the headlines at 12.00am: great britain'sjoe chung has won the gold medal in the men's modern pentathlon on the 15th day at the tokyo olympics. gold medal number 2a team gb. the first gold of the day for team gb goes to goes to galal yafai, beating carlo paalam from the philippines in the flyweight boxing. success in the pool, with tom daley taking the bronze in the 10m platform diving — his second medal of the games. china's cao yuan took the gold. britain's matt walls and ethan hayter took aim medal in the