Honolulu police are looking into a string of phone threats against six Oahu schools, a scare for parents that ended without any real danger found.

• Six campuses got threats, including Punahou, which locked down briefly.
• Police blocked off streets near the school while they checked it out.
• Parents were emailed in the early afternoon, and the all-clear came minutes later with no credible threat found.
• Most students were on fall break, so few kids were on campus.
• Police are checking whether the threats at the different schools are linked.

Outlook: Investigators will try to trace the calls and determine if one source was behind all six, with students due back from fall break next week.