TEGUCIGALPA -- Deposed President Mel Zelaya was prevented from returning to Honduras and was forced to head to El Salvador.

Zelaya's plane flew over Tegucigalpa's Toncontin International Airport on Sunday, but the aircraft could not land because vehicles had been parked on the runway.

The president's supporters clashed with the security forces around the airport, leaving at least one person dead and 10 others injured, hospital spokesmen and Red Cross officials said.

Isis Obed Murillo, 19, died from a gunshot wound to the head, Hospital Escuela spokesmen said.

Police and soldiers fired on demonstrators who had gathered at the airport to welcome Zelaya back and entered the facility, eyewitnesses said.

Zelaya made a brief stopover in Managua, where he met with Nicaraguan President Daniel Ortega and Paraguayan President Fernando Lugo before traveling to El Salvador.

"I call on the armed forces of Honduras to put down their rifles," Zelaya said in a joint press conference in San Salvador with the presidents of Argentina, Ecuador, El Salvador and Paraguay.

The Honduran government, meanwhile, imposed a curfew in an effort to halt the protests staged by Zelaya supporters.

Foreign Minister Enrique Ortez said Sunday that Zelaya would not be allowed to fly into Honduras.

The Organization of American States suspended Honduras from participating in the inter-American body effective immediately in response to the June 28 coup against Zelaya.

The OAS issued a resolution urging member states and international organizations to review their relations with Honduras as part of efforts to restore democracy and the rule of law in the Central American nation.

The review could lead to sanctions of different types and at different levels, including economic, political and diplomatic penalties imposed by OAS members, against Honduras.

Zelaya said over the weekend that he would return to Tegucigalpa in the company of "several presidents," but the foreign leaders who have been backing his bid to return to office decided not to accompany him.

The deposed president, who had originally planned to go home last Thursday to reclaim his office, put off the trip after the OAS gave authorities in Tegucigalpa 72 hours to restore him to power.

Honduras's new rulers said he would be arrested for violating the nation's constitution if he returned.

Every government in the Americas has condemned the coup in Honduras.

Hondurans are scheduled to go to the polls Nov. 29 to choose a successor to Zelaya - whose term ends next January - as well as legislators and mayors.

Lawmakers have justified Zelaya's removal on the grounds that he threatened the constitutional order by trying to hold a non-binding referendum on his call for an assembly to overhaul a constitution that, among other things, allows the military to name its own commanders with only nominal input from elected officials.

Zelaya's foes say he wants to change the charter so he can run for re-election, a charge he flatly denied during a press conference last week at U.N. headquarters in New York.

Noting that the current Honduran constitution limits the president to a single four-year term, Zelaya said a revised charter would apply only to his successors.

The coup leaders, however, say Zelaya is trying to follow in the footsteps of Venezuelan President Hugo Chavez, a socialist who this year won a referendum that allows him to remain in power indefinitely.