Updated 10/21 at 11:38 a.m.

Arlington Public Schools has canceled virtual instruction for Wednesday because of a network outage.

The Virginia school district, which serves nearly 30,000 students, announced Tuesday night that a “major fiber cut” in Vienna had interrupted service. That issue should be resolved today with school resuming Thursday, says an APS spokesperson.

“We apologize for any inconvenience this has caused and again, thank you for your patience. We will continue to provide updates and will notify you when service is restored,” the school district said in a tweet Wednesday.

The district says it will continue meal service today and that the disrupted service will not affect its aquatic centers.

APS has also pushed back its deadline for parents of preK-5th grade students and others in Level 2 of the district’s phased-in hybrid instruction model to decide between distance or hybrid (a mix of distance and in-person) learning. Families now have until Friday to make that determination.

The school district is one of several in the area to contend with technical issues during a school year heavily reliant on technology. When school began this year, many APS students had difficulty accessing their online classrooms due to a firewall issue.

Last week, a downed fiber optic cable knocked Virginia’s online voter-registration panel out of commission for hours on the final day of voter registration in the commonwealth. A federal judge later extended the registration deadline following a lawsuit from voter advocates.

This post has been updated with additional information about the resumption of virtual learning.