State Police currently have one adult and two juveniles in custody at Troop 5 in Bridgeville.
The juveniles are students in the Seaford School District. Police say their identities will be released later today.
The messages sent this morning stated that there would be a shooting today, sending three schools into lockdown.
In addition, earlier this morning both the Sussex Technical High School and Sussex Central High School received verbal bomb threats. DSP is investigating those threats and as a result both districts have evacuated students as police trained K-9's conduct searches of the school. Those incidents remain under investigation.
Police say the arrests are not related to the bomb threats.
This was the final day of state testing at several Sussex County schools.
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