Nebraska state troopers have seized more than 52 pounds of marijuana and arrested six people after four recent traffic stops. The Nebraska State Patrol says the stops were made along Interstate 80. Two were made Sunday and two on Monday. One man was arrested and 6.5 pounds of marijuana was seized on Monday near Grand Island. Monday's second stop occurred near the Lincoln Airport exit. The driver and a passenger were arrested and 25.7 pounds of pot was seized. Late Sunday morning, a pickup driver was arrested and 15.1 pounds of marijuana was seized in north Lincoln. On Sunday night, a driver and a passenger were arrested and 4.8 pounds of marijuana was seized near Kearney in south-central Nebraska.