"We are committed to mediation, but we are reassessing everything now," Foreign Ministry spokesman Majed al-Ansari told a news conference, saying the move was prompted by, among other things, "campaigns" against Qatar by Israeli government officials that showed a "lack of seriousness" in seeking a solution. "Qatar is reconsidering its role as a mediator and that has to do with many elements, including the campaigns against my country in different media outlets and by different officials who attack my country and its role as a mediator, and use all this false information to justify these attacks," the diplomat said. The spokesman said it was "no secret" that there had been statements by "Israeli officials, including ministers in [Benjamin] Netanyahu's government, who have spoken negatively about Qatar's mediation." Al-Ansari said those making such statements, "whether they are inside or outside the Israeli government, are not taking into consideration the information they know, which is related to [Qatar's] role and how it conducts its mediation." And this was "one of the reasons" why Doha was reviewing its position as the lead mediator, along with Egypt and the United States, in efforts to reach a truce deal in the Gaza Strip between Israel and the Palestinian Islamist movement Hamas that would lead to a ceasefire and a prisoner swap between Israeli hostages held by the Islamist group and Palestinian prisoners in Israeli jails. "We need commitment from all parties to reach an agreement and, secondly, attacking the mediator does not show commitment, does not show seriousness, shows lack of keenness on the mediation process," said al-Ansari, who said he was "deeply frustrated" by such comments. The Qatari diplomat did not specifically mention comments made by Netanyahu's government against Qatar, although Israeli media have reported on some of the government's criticism of the Gulf state's mediation role during the six-month war, describing it as "problematic." This problem stems mainly from the fact that Qatar hosts Hamas's political bureau, which was set up in coordination with the United States. In response, al-Ansari told the news conference that "there is no justification" or any kind of pressure on Qatar for the political leadership of the Islamist group Hamas to leave Doha, where the Palestinian movement has maintained a presence for a decade. "The Hamas office in Doha was established in coordination with the United States and other countries in order to achieve some kind of success in this whole issue," he stressed. "The Hamas leaders are here in Doha, they can leave whenever they want, they can come back whenever they want. There are no restrictions. And there is no need to ask them to leave or for anyone to ask them to leave," the diplomat insisted, referring to media reports, such as one in the US-based Wall Street Journal, that the Islamist group's political leaders were considering moving their base out of Qatar. Read Also: Irão lamenta novas sanções da UE após retaliação contra Israel (Portuguese version)