A pair of attacks over 700 miles apart on Thursday struck at the heart of community safe havens, leaving shocked Americans with an uneasy sense of security.

First, a deadly shooting being investigated as terrorism devastated a Virginia university in a military town. Hours later, a targeted vehicle-ramming attack on a Michigan synagogue left congregants shaken to their core.

The shooting at Virginia’s Old Dominion University late Thursday morning was committed by a veteran and convicted ISIS supporter. He killed one person and injured two others before a classroom of ROTC students subdued and killed him, the FBI said.

Less than two hours later, an explosives-laden vehicle plowed into the Temple Israel in West Bloomfield Township, setting it ablaze in what the FBI called a “targeted act of violence against the Jewish community.”