Dozens of people in combating the Yemen

 there were two days of clashes between forces of the tribal Government of Rachid thirty-eight people were killed in the resumption of fighting between the security forces of the Yemen and armed members of the tribe of the largest in the country.

Witnesses reported heavy weapons and machine gun fire in a district of the North of the capital, Sanaa.

Some clashes were around the House of tribal leader Sheikh Sadeq al-Ahmar, who joined protests against the regime of President Abdullah Saleh.

The two parties have also fought outside several key departments.

Sheikh Ahmar, head of the powerful tribe of Rachid, is a former supporter of the President. In March, he joined the anti-Government protests against Mr. Saleh.

"The clashes were violent." You could hear the noise of the machine gun and mortar fire around the world, "a witness told Reuters news agency."

Medical sources said 24 tribes were killed and representatives of the Government, said 14 security personnel killed in the fighting Tuesday.

Clashes flared after both fighters tribes would have killed summers and 25 other combatants wounded Monday.

President Ali Abdullah Saleh, in power since 1978Population 24.3 m; land area 536,869 kmThe sq population has a median age of 17.9 and a literacy of 61% of unemployment rate of 15% gross national income per capita was $ 1,060 (￡ 655) in 2009 (World Bank) violence follows the refusal of Mr. Saleh to sign a negotiated to the Gulf of youth transition process on Sunday.

He said he would sign only in the presence of the leaders of the opposition.

The agreement called for Mr. Saleh to resign in a month after 33 years in Office and power to a Government of national unity. It would also have given the immunity of the President of the prosecution.

Mr. Saleh has been criticized by Western powers, particularly the United States and the France, for failing to agree to a transfer of power.

During this time, many demonstrators - inspired by the revolts successful in Tunisia and Egypt - said the agreement in the Gulf does not go far enough and are demanding immediate departure of Mr. Saleh.

In March, Sheikh Ahmar said he was "join the revolution" and called Mr. Saleh, himself member of the tribe of Rachid, "to the Yemen to avoid bloodshed and make a quiet exit.