The governing Palestinian Islamist group Hamas accused Israel of carrying out an air strike on the hospital. Israel denied that, saying the blast was caused by a Palestinian rocket falling short after being launched at Israel.
The Israeli account has been supported by US, French and Canadian analyses.
The minister said in a separate interview that Italy was working to bring a group of 18 people, including Italians and their Palestinian relatives, out of the Gaza Strip.
“Cars are ready to leave from Cairo to go and pick them up when the Rafah crossing opens,” Tajani told RAI public radio.
The group comprises seven Italians, seven dual Italian-Palestinian nationals and four Palestinians, Tajani said, adding that a 19th person, an Italian Red Cross worker, had said she wanted to remain in Gaza.
