Two Palestinians died on Saturday after being shot by Israeli troops during mass protests on the Gaza border on Monday.
The deaths bring the total number of Palestinians killed on Monday to 61.
It added that more than 3,000 people were injured on Monday alone.
It was the deadliest day in the besieged territory since the 2014 war. The UN on Friday voted to send a team of investigators to probe the deadly shootings, which took place as US delegates opened the new embassy in Jerusalem.
At least 118 Palestinians have been killed by Israeli forces since Great Return March protests began on 30 March calling for their right of return to their homelands leading up to the 70th anniversary of their expulsion, or Nakba.
Read more: The Palestinians killed by Israeli forces during Gaza's embassy day massacre
The Gaza Ministry of Health said in a statement that 20-year-old Muhammad Elayyan succumbed to his wounds in the al-Quds Hospital. He was injured during Monday's protests, east of the al-Bureij refugee camp in the central Gaza Strip.
The second Palestinian was identified as Muin Abd al-Hamid al-Saie, 58, from the al-Shati refugee camp in northern Gaza. He died at al-Shifa hospital.The deaths bring the total number of Palestinians killed on Monday to 61.
It added that more than 3,000 people were injured on Monday alone.
It was the deadliest day in the besieged territory since the 2014 war. The UN on Friday voted to send a team of investigators to probe the deadly shootings, which took place as US delegates opened the new embassy in Jerusalem.
At least 118 Palestinians have been killed by Israeli forces since Great Return March protests began on 30 March calling for their right of return to their homelands leading up to the 70th anniversary of their expulsion, or Nakba.
Read more: The Palestinians killed by Israeli forces during Gaza's embassy day massacre