SANA, Yemen — A large car bomb exploded outside a police academy in Yemen’s capital, Sana, early Wednesday, killing or wounding dozens of applicants who were lined up at the building’s gate, according to security officials.

An Interior Ministry official said that at least 38 people had been killed and that more than 90 had been wounded.

Investigators said there was no immediate claim of responsibility for the bombing. The attack was the deadliest in the capital since October, when a suicide bomber killed nearly 50 people at a protest.

Video of the aftermath of Wednesday’s bombing showed bodies in heaps outside the walls of the academy and police officers removing the mangled wreckage of cars.