Thousands of people are trapped in Gaza’s Jabalia camp as Israeli forces attack the area, Médecins Sans Frontières (Doctors Without Borders) said on Friday, a week after Israel began an offensive it says is aimed at stopping Hamas regrouping. Israeli strikes killed at least 34 Palestinians across the Gaza Strip on Friday, with nearly half of the fatalities occurring in Jabalia, the northern district which is the largest of Gaza’s historic refugee camps. “Nobody is allowed to get in or out; anyone who tries is getting shot,” MSF project coordinator Sarah Vuylsteke said on X. Five MSF staff were…