BENGHAZI, Libya (AP) — Egypt’s military involvement in Libya underlines Cairo’s concerns about the threat posed by Islamic militant groups operating near the two nations’ porous border, as well as home-grown jihadis who rely on their Libyan comrades for weapons. Above all, Egypt aims to prevent these groups from linking up.

As fighting continued for a second day Thursday in Benghazi, where residents reported Egyptian warplanes have been pounding Islamist militia positions, analysts warned that Cairo’s foray into the ongoing fighting in Libya could deepen the turmoil there.