Some OnePlus 5 users are unable to call emergency services on their devices, according to user complaints on Reddit. A handful of OnePlus 5 owners have complained that the device will reboot itself once 911 is called, preventing them from reaching emergency services.

Reddit user Nick Morrelli noticed the glitch after he tried to call 911 to report a building fire in Seattle, and other users have reported that the OnePlus 5 is unable to dial 911 (or 999 in the UK, as another user reported) without rebooting. While most users haven’t reported having the issue, any percentage of devices not being able to reach emergency services is a major issue for OnePlus.

In a statement to The Verge, OnePlus says it’s looking into the problem. “We have contacted the customer and are currently looking into the issue. We ask anyone experiencing a similar situation to contact us at support@oneplus.net."