Palestinians in the Gaza Strip fired a volley of rockets at southwestern Israel on Sunday night. The Iron Dome defense system shot down two of the projectiles — Grad rockets — over Netivot.

There were no initial reports of injury or damage.

Earlier in the day Israel Air Force planes struck 12 sites in Gaza in response to rockets fired over the weekend. Two rockets hit the town of Sderot, close to the border with Gaza, late Saturday, causing a massive fire that destroyed a paint factory.

The retaliatory Israeli strikes targeted a weapons factory in the northern part of the Strip, a weapons facility and a “terror center” in central Gaza, and six sites in the southern strip, three of them concealed rocket launchers, the IDF said in a statement.

Direct hits were confirmed on all sites, the statement said.

According to Israeli officials, June saw a spike of rocket attacks, with 4.5 times the number of rockets launched at Israel compared to the previous month, from 13 rockets launched in May to over 60 in June.

The latest series of attacks comes amid an escalation in hostilities and tit-for-tat exchanges along Israel’s border with the Gaza Strip, as IDF troops scour the West Bank for three missing Israeli teenagers.

Israel has accused Hamas, which rules the Strip, of abducting the teens on June 12 and named two Hamas men as the suspected perpetrators.

Times of Israel Staff contributed to this report.