Israeli shelling and airstrikes killed at least 37 people, most of them sheltering in tents, outside the southern Gaza city of Rafah overnight on Tuesday. The attacks targeted the same area where strikes triggered a deadly fire days earlier in a camp for displaced Palestinians, according to witnesses, emergency workers and hospital officials. The fire at the tent camp has drawn widespread international outrage, including from some of Israel’s closest allies. The Israeli military suggested Sunday’s blaze in the tent camp may have been caused by secondary explosions, possibly from Palestinian mi…