Local synagogues have extra security following a shooting in Pittsburgh on Saturday morning.
In New Haven, more officers are patrolling neighborhoods with synagogues and prominent Jewish establishments.
The city of Bridgeport isn't taking any chances either.
"We are protecting all the houses of worship, Jewish, all the mosques, all the churches. Our police officers are out there as we speak and will continue to do so. They're vigilant and they will be protecting you in your houses of worship and your homes," said Bridgeport Police Chief AJ Perez.
Police in New Britain are also staying extra vigilant around local synagogues.
Connecticut State Police are increasing patrol checks at all synagogues under their jurisdiction as well.
Manchester Police are conducting extra patrols at the town's religious communities. They encourage the public to report suspicious activities in the community.
Officials said eleven people were killed and six others were injured. Four of the people who were injured are police officers, three of whom were shot.
Several law enforcement officials have identified the suspected gunman as 46-year-old Robert Bowers, of Pittsburgh. He is being charged with 29 federal counts including hate crimes and weapons offenses.
Witnesses said he shouted anti-Semitic comments as he was being taken into custody.
Police departments across the country said security was being increased at local synagogues in response to the attack.