(CNN) -- An arrest has been made in connection with the disappearance of a 22-year-old college student, police in Grand Forks, North Dakota, said Monday evening.
Alfonso Rodriguez Jr., 50, of Crookston, Minnesota, was taken into custody in Crookston at 7:20 p.m. (8:20 p.m. EST), shortly after the state's attorney's office in Grand Forks issued an arrest warrant for him on a kidnapping charge. He is being held at a jail in Crookston, about 25 miles southeast of Grand Forks, where University of North Dakota senior Dru Sjodin went missing November 22.
The search for Sjodin is still in progress, police said.
Authorities believe Sjodin may have been abducted while she was talking to her boyfriend on her cell phone, according to Associated Press reports. She had finished her shift at Victoria's Secret at the Columbia Mall in Grand Forks and had gone shopping at another store in the mall.
Her boyfriend, Chris Lang, told authorities he was talking to Sjodin on the cell phone when the conversation abruptly ended, the AP reported. Police said Lang reported that Sjodin said "something to the effect of 'Oh my God,' or 'Oh no" ' before the line went dead.
The search had been centered in Fisher, Minnesota, about 10 miles east of Grand Forks, where the call was traced to her cell phone, the AP reported. It was widened to the Crookston area because the cell phone signal could have carried that far, officials said.
Since Sjodin's disappearance, hundreds have turned out for organized searches, according to the AP. Police have received hundreds of calls to a tip line.