An Israeli security expert says Syrian hackers tried to break into the computers of the water system of the city of Haifa, The Associated Press reports.

Speaking at a lecture on Saturday, May 25 in the southern city of Beersheba, Yitzhak Ben Yisrael, Israel’s former cyber security adviser, said that a group calling itself “The Syrian Electronic Army” had launched the failed attack two weeks ago.

In April, an assault in the name of the hacking group Anonymous mostly failed.

The attack took place just after Israel bombed a military complex near Damascus. Israel refuses to comment on the strike but officials at the time said Iranian missiles set for Hezbollah were hit. Syria has said that it would keep all options on the table for its response.