A Kenyan court on Monday allowed police to hold the husband of long-distance runner Agnes Tirop for 20 days over her killing, the KTN News channel reported.
Tirop's husband, Ibrahim Rotich, was arraigned on suspicion of murder before the court in the Rift Valley town of Iten, close to the home they shared.
Police told the court they would use the time to complete investigations and to carry out a mental assessment on the suspect.
Police arrested Rotich on Thursday in the coastal city of Mombasa, saying he was trying to flee the country. Tirop had been found dead, with several stab wounds, in their home on Wednesday. She was 25.
Last month, Tirop broke the women-only 10-km world record in Germany, crossing the line in 30:01 minutes to shave 28 seconds from the previous record set nearly two decades ago.
Less than two weeks ago, on Oct. 3 Tirop finished second in the Giants Geneva 10K race.
She claimed bronze medals at the 2017 and 2019 world championships in the 10,000-metre race, and won the 2015 World Cross Country Championships.