A Democratic congressional candidate in Oklahoma expressed his embarrassment after he admitted to stealing his opponent's sign 'in the heat and rush of a campagin.'

A Monday Facebook post accused Tom Guild of removing signs belonging to Democratic candidate Kendra Horn in Oklahoma City.

The post, made by Oklahoma City School Board member Mark Mann, came just one day before the Democratic primary Tuesday.

A Monday Facebook post accused Tom Guild of removing signs belonging to Democratic candidate Kendra Horn in Oklahoma City

Sometimes, in the heat and rush of a campaign, mistakes are made,' Guild said on Monday afternoon. 'On reflection, removing some of my opponent's signs — for any reason — was a mistake on my part for which I sincerely apologize.'

Sometimes, in the heat and rush of a campaign, mistakes are made,' Guild said on Monday afternoon according to the Oklahoman. 'On reflection, removing some of my opponent's signs — for any reason — was a mistake on my part for which I sincerely apologize.'

Democrat Kendra Horn is expected to lead a crowded field of Democrats seeking that party's nomination for the 5th Congressional District, which includes downtown Oklahoma City

In the pictures, Guild can be seen in what appears to be a lime green shirt and a white cap as he removes the signs from the premises.

'The Democratic primary for CD 5 just got real! At 36th and Classen I just saw candidate Tom Guild pulling the plastic signs off of the metal frames for his opponent Kendra Horn,' Mann said on Facebook.

'He then walked off and got into a two door sporty BMW. I guess it could get worse- he could take the frame as well when pulling up Horn’s signs!'

Horn took to her official Facebook page and called on voters to consider ethics when voting.

'This election isn't about yard signs, it's about education and making health care affordable, but voters should hold candidates accountable when it comes to values and ethics as well,' she said on Monday night. 'I'm calling on my supporters to focus on talking to their friends and family about our campaign and the issues that matter most to them.'

Guild stole several signs from their

Video shows Guild wearing gloves as he removes three signs from their metal post. He then takes the signs out of camera view

Video shows Guild wearing gloves as he removes three signs from their metal post. He then takes the signs out of camera view.

Five Republicans were vying Tuesday for their party's nomination to fill an Oklahoma congressional seat vacated by a GOP congressman who left the post to become administrator of NASA.

The crowded field is seeking the 1st Congressional District seat, which has been vacant since April when former U.S. Rep. Jim Bridenstine resigned to accept President Donald Trump's nomination to lead the space agency. Bridenstine was elected to the seat in 2012 and served on the House Committee on Science, Space and Technology.

Candidates include Kevin Hern, state Sen. Nathan Dahm, Danny Stockstill, former Tulsa County District Attorney Tim Harris and Andy Coleman.

Horn took to her official Facebook page and called on voters to consider ethics when voting

If no one gets 50 percent of the vote, the top two vote getters will meet each other in a runoff election on Aug. 28. The winner will meet the winner of a five-candidate Democratic primary in the general election on Nov. 6.

Oklahoma's four other congressional districts are held by Republicans who are heavy favorites to win their Tuesday primaries. Reps. Tom Cole, Markwayne Mullin and Steve Russell are all expected to fend off lesser-known challengers, while Rep. Frank Lucas is running unopposed for the nomination.

Democrat Kendra Horn is expected to lead a crowded field of Democrats seeking that party's nomination for the 5th Congressional District, which includes downtown Oklahoma City. The revitalized core of the state's capital city has drawn a growing population of young professionals and retirees seeking a more urban lifestyle.

If elected, Horn would become the first Democrat to represent the district in more than 40 years.