Palestinian Prime Minister Rami Hamdallah said Sunday that a second group of Palestinian security prisoners could be released by Israel by the end of September.Israel released a first group of 26 Palestinian prisoners on August 13 as a gesture to the Palestinians ahead of the renewal of peace talks. The cabinet voted to release a total of 104 Palestinian prisoners in stages over the next nine months as part of the diplomatic negotiations."It is possible that the second batch of pre-Oslo prisoners will be released before the end of this month," the Bethlehem-based Ma'an news agency quoted Hamdallah as saying.