SARAJEVO. Oct 9 NATO . planes today attacked Serb I targets in northeastern

Bosnia after Serb shelling of government towns claimed dozens of casualties, an al

। liance spokesman said, reports AP

Two NATO aircraft dropped laser guided bombs on

Serb command and controls posts in northeastern Bosnia In the general area of the government-held city of Tuzla, said NATO spokesman Capt Mark Van Dyke

The alliance was assessing the damage, he said

The United Nations had called for NATO presence over the area earlier today after Serbs shelled two government towns

Van Dyke said the Serb shelling endangered UN per sonnel

Serbs shelled two government held towns in cen tral Bosnia today killing two people hours before a US-sponsored truce was to take effect

A day earlier, Serb shelling in central Bosnia killed at least 13 people and wounded almost 100.

The Serb attacks and ageneral surge in fighting could jeopardize the truce due to take force at one minute after midnight (2301 GMT today). UN spokesmen warned.

"We hope that the parties, especially the Bosnian Serbs, will come to their senses and enable this cease-fire to happen. said UN spokesman Phil Arnold

Fighting and killing commonly pick up as the sides battle for land and bargaining power ahead of the countless cease fires that have given false hope to Bosnians over the past three and a years. Early today. Serb shells slammed into Zlvinice. nine miles south of the government stronghold of Tuzla, killing two people and wounding 10.

The shelling Sunday targeted two refugee camps and a town In central Bosnia.

AFP adds: Serb extremists have stepped up their campaign to rid Serb-held northern Bosnia of the estimated 25 000 Muslims still living tn the region. UN aid officials said today

"In the last four to five days, between 3,000 and 4,000 Muslims have been expelled from Sanskl Most. Bosanskl Novi and Prijedor These are extremely brutal expulsions with reports of men being separated from women and children." Kris Janowski, a UNHCR spokesman said.