Hazmat crews and officers from both Shreveport and Bossier were busy cleaning the roads along Interstate 20 this morning. Just after 7:30, a truck driver was flagged by other motorists. His truck was leaking oil. Authorities say his truck was leaking 40 to 50 gallons from Airline Drive, in Bossier, all the way to Fairfield, in Shreveport. Before authorities came, the driver said he was plugging the hole with his hand for half an hour.