The US national security adviser has said there’s a real risk that an escalation in fighting between Israel and Hezbollah in Lebanon could ignite a regional war. Since Jake Sullivan voiced his concerns, the Israeli military says it's launched fresh attacks on Hezbollah targets in Lebanon.

Also, we speak to Robert Baer, a former CIA agent, on the attacks in Beirut and the killing of senior Hezbollah commander, Ibrahim Aqil. And supporting a parent with dementia, we hear from one science writer about her mother's experience.

(Photo: Medical personnel work at the site of Friday's Israeli strike, as search and rescue operations continued on Saturday. Credit: Reuters)