The status of an Iranian-born LSU doctoral student remains unknown more than 24 hours after he was reportedly detained by Immigration Customs and Enforcement agents.Pouria Pourhosseinhendabad remained listed as "in custody" Thursday on ICE's official database, but the website does not indicate where he is being held.LSU representatives could not be reached for updates on his status or that of a second student who was reportedly detained. ICE has not release an official reason for the detainments.University spokesman Todd Woodward told The Illuminator that Pourhosseinhendabad's wife was also detained by ICE and is another Iranian-born LSU student. He confirmed the two had been arrested at their off-campus apartment over the weekend. Pourhosseinhendabad is a doctoral student studying mechanical engineering at LSU, according to a research article published on May 12. His paper's research focuses on using different techniques to limit impurities in clays used in industrial and medical applications.In the paper's abstract, Pourhosseinhendabad and his coauthor describe how bentonite clay and other "nano-clays" are used in "industries such as medical, water purification, food processing and drilling mud," but that their applications are limited by impurities regularly found in "low-grade bentonite." The paper outlines different "cost effective and efficient" ways to purify this clay for future industrial use.On Sunday morning, Mandonna "Donna" Kashanian, a 64-year-old Iranian woman who has lived in the U.S. for 47 years, was detained by ICE outside of her home in New Orleans. She in now being held at the South Louisiana ICE Processing Center in Basile. ICE also announced on its website Monday it had arrested 11 Iranian nationals over the weekend, but did not mention any detainees who had been residing in Louisiana.