The new South Shields MP Emma Lewell-Buck, has visited the House of Commons for the first time to take her seat.
Labour's Emma Lewell-Buck has made history tonight after becoming the first female MP in South Shields.
Results for local council ballots will be keenly studied in Westminster for pointers towards the 2015 general election.
Labour winner Emma Lewell-Buck, a married social worker, was cheered by supporters as she became the first female MP in South Shields.
From the podium, she said:
I will help get people back to work, champion our wonderful town and never give the Tory Government one moment's peace.
– Ukip candidate Richard Elvin
It's an absolutely fantastic result for UKIP. To come from nowhere to take 25% at its first attempt is absolutely stunning.
It's a message to all three mainstream parties that UKIP is the official opposition. We have proved that in Labour strongholds and we have done it again in South Shields
UKIP's second place finish in South Shields saw them claim 24.21% of the vote in the constituency, having not contested the seat in the last General Election.
By contrast, the vote of all three main parties fell - though only moderately for Labour.
The Conservatives saw their vote drop by 10.04%, down to 11.55% overall, while the Liberal Democrats - who finished third in 2010 - tumbled 12.79% to just 1.42% of the vote.
Newly-installed MP Emma Lewell-Buck claimed 50.51% of the constituency's vote, a drop of 1.51% from the vote share commanded by her predecessor David Miliband.
Official results show Labour have held the South Shields seat with 12493 while UKIP follows in second place with 5988.
The conservative Party is third with 2857 and Lib Dems have 352
Results for the South Shields by-election expected within 20-30 minutes
Just had my ear bent by Labour - they reckon majority will be halved to 5,000. Though that'd roughly maintain same share of vote as 2010.From @PaulBrandITV on Twitter:
The turnout in South Shiedls was 39.9 per cent.