HARLINGEN, Texas (ValleyCentral) — Flights have resumed at Valley airports after a radar outage grounded all airlines on Monday.

Officials with the Valley International Airport in Harlingen said the technical issues caused the outage in Corpus Christi, which is where the radar systems in the Valley are remoted to.

The flight stoppage was lifted Monday evening, but officials urged passengers to stay up to date with airlines.

“The airlines will know more information; they will be the first ones to know when that flight is going and when to travel and when the ground stop is lifted,” said Marv Esterly, director of aviation at Valley International Airport.

A check of online flight schedules on Tuesday morning for Valley International Airport, Brownsville-South Padre Island International Airport and McAllen International Airport indicated that all the airlines are operating.