A standoff between two rival governments inLibya looked set to worsen on Thursday as the administration newly chosen by parliament accused the incumbent prime minister of using force to try to stop it from being sworn in. Fathi Bashagha was due to take the oath of office in Tobruk, but the current Tripoli administration of Abdulhamid al-Dbeibah has vowed not to cede power, amid a growing risk of fighting or a return to territorial division. Bashagha complained late on Wednesday that Dbeibah had cut off Libyan airspace to prevent ministers in the new government from reaching Tobruk and early on…