A Delta Connection regional jet pilot apologized to passengers after executing an “aggressive maneuver” to avoid a U.S. Air Force B-52 bomber during its approach to Minot, North Dakota, on Friday, according to audio from the incident.

The Richardson’s ground squirrel, a one-foot-long rodent weighing less than a pound, is wreaking havoc in Minot, North Dakota. Known for its relentless tunneling, the small mammal has spread from vacant lots to city neighborhoods, and its population has exploded over the past two decades.

At least three people are dead in rural North Dakota after tornadoes left damage across eastern areas of the state, according to a Cass County Sheriff’s Office release Saturday.

The Keystone pipeline system, which transports crude oil from Canada to the U.S., was shut down Tuesday morning following an oil spill in southeastern North Dakota, according to government and company officials.

The death toll from powerful winter storms in the central and eastern United States has risen to at least 14, officials said Monday, after floods, gale-force winds and bitterly cold temperatures swept the region.