Former England bowler Steve Harmison has joined Yorkshire on an initial one-month loan with immediate effect.
Harmison, 33, has found himself on the fringes of the first team at the Riverside this season and has been confined to the second XI for much of the campaign.
Yorkshire, meanwhile, are short of seam options with Ryan Sidebottom injured and Mitchell Starc due to link up with Australia A.
Homegrown quick Ajmal Shahzad has fallen out with the club and is currently playing for Roses rivals Lancashire.
Welcoming his loan, Harmison told Durham's official website: "It's been a frustrating first half of the season and I don't want to be playing second team cricket.
"I'm pleased that I can be helpful to Yorkshire at this point, when they are struggling with their senior bowlers, and I'm looking forward to our first game on Wednesday."
In the event that a Durham bowler suffers injury or is called up on England duty, the county would be in a position to recall the fast bowler.
Durham chief executive David Harker added: "We are fortunate to have an especially strong bowling attack, who have been performing well.
"It's been a frustrating summer for everyone because of the bad weather, not least for Stephen who has been unable to get sufficient overs under his belt in order to compete for a first team place."
Yorkshire head coach Martyn Moxon has welcomed adding the experienced Harmison to his ranks.
He said: "We're pleased that Durham CCC and Stephen have agreed to the loan providing us with cover for the likely absences caused by Ryan Sidebottom's calf injury and unavailability of Mitchell Starc.
"He still has a great presence on the field and we look forward to welcoming him into the Yorkshire dressing room."