UNITED NATIONS, Jan. 24 (Xinhua) -- United Nations (UN) Secretary-General Antonio Guterres on Wednesday condemned the twin car bombing in Benghazi, Libya, and deplored the loss of civilian life, including children.

The secretary-general was also alarmed by reports of summary executions being carried out in Benghazi in retaliation for the attack, Guterres' spokesman Stephane Dujarric said in a statement.

"The secretary-general reiterates that there can be no military solution to the Libyan crisis. The perpetrators of the attack in Al-Salmani, and of any criminal acts carried out in retaliation, must be brought to justice."

A twin car bombing in Benghazi's central Al-Salmani district on Tuesday night left more than 30 people dead and dozens more injured.

There are pictures posted on social media that appear to show summary executions at the site of the bombing.