1.  Air raid sirens wailed in Inchon and other areas west of Seoul along the route of the defecting pilot, the ministry said.

2.  Four civil defense officials were arrested Saturday on charges of failing to sound alarms in Seoul when a defecting North Korean pilot flew into South Korea.

3.  Prosecutors sought arrest warrants Saturday for four civil defense officials accused of failing to sound alarms in Seoul when a defecting North Korean pilot flew in.

4.  But the defecting pilot said he had not been fired at.