A cyberattack on the British Parliament has caused panic among lawmakers and triggered an investigation. A spokeswoman for the House of Commons said Saturday that “unauthorized attempts to access parliamentary user accounts” had been detected, the Associated Press reported. The National Cyber Security Center is working to secure the computer network, and remote access for lawmakers has been disabled as a precaution, she said. “We have systems in place to protect member and staff accounts and are taking the necessary steps to protect our systems,” she said. Lawmakers had earlier taken to Twitter to sound the alarm over the cyberattack, warning that they would not be able to reply to emails from constituents. No further details were given on the scale of the breach. The incident comes after the country’s National Health Service was hit by an unprecedented ransomware attack in May that forced some hospitals to turn away patients.