Palestinian terrorists in the Gaza Strip fired a rocket at southern Israel on Friday night, according to the Israeli military. There were no reported injuries or damage.

The rocket fell in the town of Sderot, and in response Israeli tanks and aircraft attacked three Hamas sites, according to the AP. The Israel Defense Forces said the attacks targeted “infrastructure used for underground activity.”

The rocket fire broke a calm on the border that has prevailed since the outbreak of the coronavirus pandemic.

Separately, the army on Sunday deployed hundreds of soldiers to support police on the country’s streets to enforce the coronavirus lockdown, the IDF announced on Friday.

About 500 soldiers will help police “in patrolling, isolating and securing certain areas, locking routes and additional similar assignments,” according to Reuters.

Last week, Israel issued strict lockdown directives according to which people must remain within 100 meters (110 yards) of their homes unless they need to purchase food or medical supplies.