Britain's Adam Yates moved into the lead of the Tour de France after Julian Alaphilippe was given a 20-second penalty on stage five, which was won by Wout van Aert.
France's Alaphilippe, who is now 16th overall, was penalised for taking a bottle from a team support member inside the final 20km.
Yates leads Primoz Roglic by three seconds in the yellow jersey.
"This is not the way I'd imagined taking the yellow jersey," said Yates.
"If I'm honest, no one wants to take the jersey like this.
"I was looking to take the jersey on stage seven anyway so I'll go in with the same tactic - try to win the stage and see what happens."
Yates is the ninth different British rider to lead the Tour and first since Geraint Thomas won in 2018.
Alaphilippe had led Yates by four seconds and looked to have retained the yellow jersey after finishing safely in the bunch in Privas.
But television images showed him being given a water bottle with 17.8km to go - under the rules of world governing body, the UCI, riders are not allowed to take on food or drink in the final 20km of a stage.
It was a bizarre way for the Frenchman to lose the jersey he had taken by winning stage two, especially after Deceuninck-Quick-Step had ridden on the front of the peloton for most of the day to protect Alaphilippe and set up sprinter Sam Bennett.
Ireland's Bennett was able to finish third behind Van Aert and Dutchman Cees Bol to take the green jersey off Peter Sagan, who was fourth.
Bennett is the first Irishman to lead any classification in the Tour since 1989, when the great Sean Kelly won the last of his four green jerseys.
By also beating Sagan in the intermediate sprint, Bennett showed his intent to challenge Sagan in the points classification, which the Slovakian is attempting to win for a record-extending eighth time.
Van Aert appeared from the bunch sprint to edge out Bol and win in four hours, 21 minutes and 22 seconds.
Stage five saw the riders tackle a 183km route from Gap to Privas.
Stage five result
1. Wout van Aert (Bel/Jumbo-Visma) 4hrs 21mins 22secs
2. Cees Bol (Ned/Team Sunweb) Same time
3. Sam Bennett (Ire/Deceuninck-Quick-Step)
4. Peter Sagan (Svk/Bora-Hansgrohe)
5. Jasper Stuyven (Bel/Trek-Segafredo)
6. Luka Mezgec (Slo/Mitchelton-Scott)
7. Bryan Coquard (Fra/B&B Hotels-Vital Concept)
8. Caleb Ewan (Aus/Lotto Soudal)
9. Clement Venturini (Fra/AG2R La Mondiale)
10. Hugo Hofstetter (Fra/Israel Start-up Nation)
General classification after stage five
1. Adam Yates (GB/Mitchelton-Scott) 22hrs 28mins 30secs
2. Primoz Roglic (Slo/Jumbo-Visma) +3secs
3. Tadej Pogacar (Slo/UAE Team Emirates) +7secs
4. Guillaume Martin (Fra/Cofidis) +9secs
5. Egan Bernal (Col/Ineos Grenadiers) +13secs
6. Tom Dumoulin (Ned/Jumbo-Visma) Same time
7. Nairo Quintana (Col/Arkea-Samsic)
8. Esteban Chaves (Col/Mitchelton-Scott)
9. Miguel Angel Lopez (Col/Astana)
10. Romain Bardet (Fra/AG2R La Mondiale)
More to follow.