President Hassan Rouhani called for unity among Muslims of the world under the present critical conditions, IRNA reported.
"The unity of Muslim societies is now the most important need of the world of Islam," President Rouhani said on Tuesday, addressing a meeting of the Cultural Revolution High Council.
"We do not accept the massacre of no innocent human whether Muslim or non-Muslim; Shiite or Sunni," he added.
President Rouhani pointed to the follow-ups by the foreign ministry and also his phone talk with his Nigerian counterpart, and said, "The conditions necessitate the Nigerian government to accelerate taking the required measures for clarifying the dimensions of the incident and preventing its recurrence in the future."
He underlined the need for investigating the conditions of leader of Nigerian Shiites and his followers, and said that Iran is ready to send a medical team to Nigeria and treat the wounded.
Earlier today, President Rouhani in a phone talk with his Nigerian counterpart said that a group of countries are sowing the seeds of discord among world Muslims, stressing that increased awareness is a dire necessity under the prevailing conditions.
In his phone talks with President Muhammadu Buhari the Iranian political leader surveyed the prevailing conditions in the Islamic world and particularly the recent catastrophic event in the north of Nigeria.
President Rouhani, meanwhile, referred to the recent visit of President Buhari of Iran and the fruitful results of bilateral talks in improvement of the two countries' relations as well as his presence in the Organization of Gas Exporting Countries, arguing that such meetings preserve not only both nations' interests, but also the Islamic world's benefits, asking for cooperation to secure the Islamic world's security.
'Under such conditions that terrorism is a serious threat against many Muslim countries' security the Muslims need to unite and not permit trivial differences of opinion to lead to acute disputes, since safeguarding the Muslims' lives is our major and public responsibility,' he said.
Rouhani asked about the care taking for the injured victims of the Nigerian disaster and especially their leader, further stressing that the Muslims have no way, but to unite today.
'The Islamic world is more than ever before in need to peace and peaceful resolving of its existing problems,' said the Iranian president, emphasizing that a fact-finding committee need to be established for the disastrous event in northern Nigeria.
'We expect the Nigerian government to relieve the entire bereaved families and injured victims of that disaster and to issue strict orders to prevent the occurrence of any further unrests,' added Rouhani.
'A group is after sowing the seeds of discord among Muslim in Islamic countries and therefore it is our duty to preserve Islam's prestige and the Muslims unity alertly and consciously,' he said.
Rouhani also announced Iran's readiness to dispatch any special assistance, such as medical and rescue and relief teams to assist the disaster's victims.
President Buhari, too, in the phone talk appreciated his Iranian counterpart's sensitivity about the world and Nigerian Muslims and elaborated on it, emphasizing that he does realize his responsibility to safeguard the Nigerian Muslims' lives.
'The Nigerian government is also determined to pursue the precise causes of the occurrence of that incidence and will definitely react to it accordingly,' he added.
'We will also do our best to restore security in our country and will act against those who have disturbed it,' he said.