Jade Etherington has won silver in the visually-impaired super combined skiing event at the Sochi Olympics, taking her medal haul to four.
The medal followed second-placed finishes in the slalom and the downhill events and bronze in the super-G.
Etherington and her guide Caroline Powell have now become the first Britons to win four medals at one Winter Paralympics. by taking second place in the super-G.
They have one more event to come - the giant slalom on Sunday - which will give them a chance to win a GB record fifth Paralympic medal.
David Cameron was among a host of names congratulating Britain's Jade Etherington, after the the British skier won the women's visually impaired downhill:
Proud of Jade Etherington, who won silver in the women's visually impaired downhill in Sochi. #GoParalympicsGB.
A host of others took to the social network to tweet their thanks. Eventually, Etherington herself tweeted, though her celebrations were understated:
We've won a Downhill medal!!!!!!! It's Silver :))))
Jade Etherington and her guide Caroline Powell crowned their first season racing together by winning Great Britain's first Paralympic medal on snow in 20 years in Sochi.
Etherington, who celebrates her 23rd birthday on Sunday, is visually impaired and communicates with Powell down the course via radio.
The pair became the first British women ever to win a Paralympic skiing medal, despite the short time they've been racing together.
It was only last April that they first got to know each other, August they first skied competitively together and January this year they first competed as a pair in a downhill.
A Ukrainian athlete was greeted by rapturous applause as he took part in the opening ceremony to the Paralympic Games in Sochi.
Mykailo Tkachenko was the only athlete from Ukraine's team of 31 to participate in the ceremony.
Ukraine agreed to compete in the Games despite the country's tense stand-off with Russia in the Crimea region over the past week.
Russia's President Vladimir Putin told the Ukrainian Paralympic chief that sports events must not be affected by politics, Interfax reports citing the Kremlin.
Ukraine's Paralympic chief said the country would pull out of the Games if Russian troops invade.
"I am very afraid that despite the world's wishes and my call that the irreversible will happen during the Paralympics. I declare: we will pull out of the 11th Paralympic Games in Russia that very second if the thing we fear and which we are against...happens," Valeriy Sushkevich said.
Ukraine's Paralympic chief has asked Russian President Vladimir Putin to ensure peace during the Winter Games.
"I repeated my one request, the one and most important request, that before and during (the Games) there will be peace," Valeriy Sushkevich said.
Channel 4 News presenter Krishnan Guru-Murthy has tweeted:
BREAKING : Ukraine to stay in the Paralympics and raise their flag "for peace" - there will be amazing atmosphere when they walk in tonight
The 1st ever lighting of the Paralympic Flame, in the birth place of Games, Stoke Mandeville has begun spectacularly http://t.co/y6m1WoPeb3