UNITED NATIONS, Feb 14 (CGTN) - UN Secretary-General Antonio Guterres on Monday called for diplomacy to defuse the heightened tensions between Russia and Ukraine.

Guterres expressed his deep worries about the current tensions and increased speculation about a potential military conflict.

The secretary-general had held a virtual meeting with Russian Foreign Minister Sergei Lavrov. He also spoke separately with Ukrainian Foreign Minister Dmytro Kuleba.