(Reuters) -The U.S. Federal Aviation Administration said on Wednesday it has issued a ground stop for United Airlines flights at U.S. and Canadian airports, citing a technological issue.

United Airlines did not immediately respond to a Reuters request for comment.

The grounding will be in place until 0700 GMT, the regulator said in a status update.

This comes roughly a month after a glitch forced United Airlines to ground flights across major U.S. airports including Newark, Denver, Houston and Chicago, causing widespread delays throughout its network in August. The outage was resolved within a few hours.