Update at 4:36 p.m.:
A lockdown on two Woodland Park schools has been lifted and students are free to leave the campuses, the school district's website says.
The lockdowns were issued about 2:50 p.m. Wednesday after a suspicious person was seen around the schools.
Buses picking up Summit Elementary students are running about 45 minutes behind schedule, officials said.
Woodland Park High School and Gateway Elementary are on-lock down due to a suspicious person on school grounds, school officials said.
"The lockdown started about 2:50 p.m., right around when the schools are released," said spokeswoman Stacy Schubloom. "Right now we're starting to limit the release at Gateway Elementary with a deputy escort."
Parents have to be the ones picking up their kids, she said.
School officials said they are holding students at the high school until they get clearance from Woodland Park police.
Buses are being held at Woodland Park Middle School, and Summit Elementary School buses will be delayed as well, according to a message on the school website.
Woodland Park police confirmed they are investigating a suspicious incident in the area, but would not give details.