SANFORD, Fla. -

The judge in the George Zimmerman murder case announced on Thursday that jury will be sequestered.

Judge Debra Nelson made the announcement in the middle of Day 4 of jury selection.  She also added that the second-degree murder trial would last two to four weeks.

Zimmerman is charged with murder in the death of Trayvon Martin.  He's pleaded not guilty, claiming self-defense.

For more information about the case, visit ClickOrlando.com.