UN Secretary-General Ban Ki-moon said on Monday that parties to the conflict in Gaza have 'expressed serious interest' in his request for a further 24 hour humanitarian ceasefire, but 'have not yet agreed on the timing of its implementation.' 'The Secretary-General calls on the parties to renew a humanitarian pause in Gaza and reiterates his demand for a durable ceasefire that could set the ground for the start of comprehensive negotiations,' his spokesman said in a statement.