Security officials say Egyptian warplanes have staged a second wave of airstrikes against positions of the Islamic State group in neighboring Libya.
The officials said the warplanes struck on Monday in Darna, an extremist stronghold in eastern Libya. The first wave of airstrikes also targeted Darna.
The airstrikes are in retaliation for the extremists’ beheading of a group of Egyptian Christian hostages on a beach, shown in an online video released Sunday night.
In Libya, a security official said Darna and its suburbs were rocked by the sound of massive explosions around lunchtime on Monday.
The officials spoke on condition of anonymity because they were not authorized to speak to the media.