The 911 system of a city in California was taken down by hackers during a cyberattack on Friday — one of several cyber incidents nationwide impacting government services. 

Suisun City, a town of 30,000 people in the Bay Area about 30 miles from Napa Valley, said on Friday that malicious software infected and compromised the city’s IT systems. 

The attack “hit critical public safety operations, including 911 routing, police and fire dispatch, records and City services,” according to a government notice. The city shut down the entire IT network and contacted federal and state officials for assistance. Emergency services are still available and public safety offices are routing calls through the county’s dispatch center. 

On Monday, officials said city hall was closed for in-person meetings and nearly all departments were closed to the public. 

The FBI is investigating the incident and helping to maintain essential services. A state of emergency was declared on Saturday during a special city council meeting, which will unlock emergency services and funding to cover the recovery costs. 

Over the last week, multiple cities and counties have reported cyberattacks or ransomware incidents that similarly impacted public services and government operations. 

The town of Coweta, Oklahoma, said it experienced a ransomware attack last Wednesday that affected all of its computers, files and digital services. The police and fire departments use off-site systems that were not impacted by the ransomware attack. 

City officials said cybersecurity experts were hired to restore systems and determine the extent of the damage. The incident was reported to federal and state authorities, who are now involved in the recovery effort. 

Home to about 12,000 people, the town had offsite backups of data that will be used to restore files and records but the system still has to be cleared of the ransomware. The town’s website is still available and the bill pay service is maintained by an outside vendor, so it was not impacted. 

No credit or debit card payments can be accepted for utility payments in person at city hall. The town pledged not to turn off anyone’s water for nonpayment while systems are down. 

On Friday, another midwest city — Mitchell, South Dakota — reported a cyberattack that forced local officials to shut down government networks. The mayor told local news outlets that emergency services were not impacted and that email systems used by local officials were not affected. But the Mitchell Republic reported county officials were ordered not to open any emails sent from Mitchell’s town government. 

Meanwhile, Coryell County in Texas and Washburn County in Wisconsin disclosed cyberattacks. On Monday, the Washburn County court system said its phone and fax lines are still down after the cyberattack was reported on Thursday. Court hearings still proceeded as scheduled and the e-filing system was not impacted. 

Washburn County board chair Lolita Olson said the county’s network has been shut down as experts work to identify the cause of the outage. 

“During this time, staff and the public may experience temporary disruptions to certain county services that rely on internet access or communications via county phone lines,” Olson said. 

“In addition, we ask that any calls be directed to 911 and they will be routed to the appropriate department until phone service is restored.”

The attacks on local governments coincide with an alarming string of cyberattacks on water and wastewater systems that have affected at least 12 states.