Israel has come under siege from several directions Monday, the one-year anniversary of the worst terrorist attack in its history.

Hamas fired projectiles from Gaza toward Israel as the country mourns the roughly 1,200 people who were killed and 250 others who were taken hostage a year ago by the U.S.-designated terrorist group, the Israel Defense Forces said. The Israeli Air Force also intercepted what it said was a surface-to-surface missile fired from Yemen, presumably by the Houthis, toward central Israel.