Western nations have agreed on more economic sanctions against Russia, but the energy sector is a delicate issue, says Theresa Fallon, director of the Centre for Russia Europe Asia Studies.

Global stock markets have taken a beating as investors rush for safe havens amid an escalation in geopolitical tensions over Ukraine. Russian stocks and bonds as well as the ruble are among the biggest losers.

In Day 12 at the Olympics, seven medals were up for grabs. A last-minute replacement helped Germany win gold in the cross-country team sprint, while Slovakia elimnated the United States in men's ice hockey.

Traditionally, growing avocados requires lots of water. But entrepreneurs in Nigeria are attempting to grow them in a new water-saving and sustainable way by using drip irrigation systems and recycling water.

Award-winning biowaste converters are helping farmers in Ivory Coast turn mountains of agricultural by-products into compost for their fields or gas for their cooking stoves.

For a century, the French town of Saint-Amand-Montrond, in the central Cher department, was the capital of gold. As France's third-biggest centre for manufacturing gold jewellery after Paris and Lyon, the town of 10,000 inhabitants was best known for its hollow-link gold chains. Today, few goldsmiths remain but the local vocational school is busy training up the next generation of jewellers. FRANCE 24 takes you to discover it.

Traditionally, growing avocados requires lots of water. But entrepreneurs in Nigeria are attempting to grow them in a new water-saving and sustainable way by using drip irrigation systems and recycling water.

Illegal mining, or "galamsey" is attracting more and more young people in eastern Ghana. Many young people are arrested, but they are adamant that without an alternative, illegal mining remains a viable way of survival.

Triathlete Flora Duffy describes her historic gold medal win after delivering the first Olympic gold medal in history for the tiny island of Bermuda.

American swimmer Chase Kalisz, who won gold in the 400m individual medley at the Tokyo Olympics, says it "hasn't really hit" him that he's an Olympic champion, and that it will "take some time to really process what happened".

Triathlete Flora Duffy has made history as the first person from Bermuda to win gold at the Olympics. Her parents describe in an interview from Bermuda how they were blown away by the crowd watching her at a pub on the tiny island.

Hong Kong's fencing gold medallist Edgar Cheung Ka-long has stirred up a surge of local interest in the sport after winning the Chinese territory's first Olympic gold in 25 years and only its second ever. The fencing school where Cheung hailed from said they received over 60 enquiries from prospective students just the morning after Cheung's win in the men's foil in the Tokyo Olympics on Monday. Morale is high among the students. "I feel very happy, but I also feel that he is a good role model for me," says a 10-year-old fencer at the school.