The police department in Ferguson, Missouri is pleading for peace following the shooting death of 18-year-old Michael Brown.
The police department issued a release Wednesday asking protesters to gather only during daylight.
Ferguson has been the site of nightly protests since Brown was killed during a confrontation with an officer on Saturday.
The department asked all people who assemble to pray or protest do so in "an organized and respectful" manner and disperse well before evening to ensure the safety of participants and the community.
Meanwhile, Ferguson Police Chief Thomas says cyber-attacks on the city's website won't force him into publicly releasing the officer's name.
Jackson said someone hacked into the website and shut it down for much of Monday, two days after the shooting.
An anonymous global group of hackers pledged to create mischief with Ferguson's city computers if the name wasn't released. But Jackson says the officer has received numerous death threats, and the chief worries that disclosing his name would endanger the officer.
The officer is on administrative leave.