The lockdown on a Syosset school initiated Monday after a threatening message was found written on one of its bathroom walls has been lifted with nothing discovered, Nassau County police said.
The message was found at Our Lady of Mercy Academy at 815 Convent Rd., a police spokeswoman said.
The spokeswoman did not know the nature of the threat and could not say what time the message was discovered.
Earlier, a spokeswoman at the school declined to comment.
The threat came the same morning two schools in the Jericho School District remained on lockdown after a bomb threat prompted a morning search of people entering the buildings, a school district spokesman said.
The threat was sent to students via emails and text messages, according to a Sunday letter to parents in the district from Superintendent Henry L. Grishman.
Nothing was uncovered in the search of students, faculty and other personnel entering Jericho Middle School and Jericho High School, the district spokesman said.