GAZA, Oct. 7 (Xinhua) -- The ongoing indirect ceasefire negotiations between Hamas and Israel in the Egyptian resort city of Sharm el-Sheikh remain "difficult and complex," Palestinian sources said Tuesday as the second day of indirect talks got underway.

The sources close to Hamas said on condition of anonymity that the discussions, mediated by Egypt and supported by the United States and Qatar, are currently focused on setting up the "technical mechanisms" required to launch the first phase of U.S. President Donald Trump's plan to end the war in Gaza.

On Sept. 29, Trump announced a 20-point plan that Israel accepted, outlining steps for a phased ceasefire, including the release of Israeli hostages, the disarmament of Hamas, and the eventual withdrawal of Israeli forces from the Gaza Strip.

According to the sources, the plan stipulates that Hamas must release all hostages within 72 hours after both sides publicly agree to the proposal. In return, Israel would release hundreds of Palestinian prisoners and suspend military operations in Gaza.

Hamas announced on Friday that it was ready to release the Israeli hostages it holds in the enclave in accordance with the plan. Trump welcomed the statement and called on Israel to halt its bombardment of Gaza immediately.

However, the Palestinian sources noted that Hamas has yet to respond to several conditions Israel considers essential for a full ceasefire, particularly those related to the disarmament of Hamas and the future governance of Gaza.

They added that the technical teams are currently examining detailed maps submitted by the Israeli delegation outlining the areas from which the Israeli army would withdraw, as well as lists of Palestinian prisoners slated for release.

In parallel, Hamas has presented its proposed mechanisms for handing over hostages and the remains of deceased captives, while pointing to logistical and security obstacles due to the ongoing Israeli military presence in parts of Gaza.

Israeli media reported that U.S. Special Envoy to the Middle East Steve Witkoff, along with U.S. President Donald Trump's son-in-law Jared Kushner, is expected to join the negotiations on Wednesday.

Israeli Minister of Strategic Affairs Ron Dermer may also take part later to finalize potential agreements, according to the reports.

Meanwhile, a spokesman for the Qatari Foreign Ministry said in a press briefing on Tuesday that the negotiations in Egypt "are ongoing and it is too early to speak of results."

He added that Trump's 20-point plan "contains many complex details" and accused Israel of prolonging the violence through continued airstrikes on Gaza, stressing that "the main challenge now is implementation, not consensus."

On Monday, Trump told reporters that he believed "things are going very well" and that Hamas had agreed to "very important things." He added, "We will reach an agreement in Gaza... I'm almost certain of that."

On the ground, Palestinian security sources said that while Israeli airstrikes and artillery shelling on Gaza have slightly decreased since dawn Tuesday, they have not completely stopped.

Palestinian medical officials told Xinhua that hospitals in Gaza have received 10 bodies since early Tuesday, including six in Gaza City, following overnight Israeli attacks.

The war began on Oct. 7, 2023, when Hamas launched a surprise attack on Israeli military sites and nearby settlements, killing about 1,200 people.

Israel responded with a massive military campaign on the densely populated Gaza Strip, which has so far killed more than 67,000 Palestinians and injured over 169,000, according to Gaza's health authorities.