( CNN ) -- Only a fraction of the oil that normally courses through the Trans Alaska pipeline was flowing early Sunday after operators discovered a leak near Prudhoe Bay , a company spokeswoman said . Crews making a routine inspection `` found oil in the basement of a booster pump building '' around 9 a.m. Saturday , according to Aleyeska Pipeline Service Company spokeswoman Michelle Egan , who said flow has been reduced by 95 % . On a typical day , 642,261 barrels of oil would pass through the pipeline . `` Crews are currently onsite to assess the situation and isolate the source of the leak , '' a company statement said . CNN 's Tom Laabs contributed to this report .
Flow in the Trans Alaska pipeline is reduced to 5 % of normal . The reason for this is that there are no more oil tankers on the way from Russia, and so they have to go through a new route ( which takes longer ). Technicians are working on a fix for the leak .