SANA’A, July 11 — In the early afternoon of Wednesday, a man dressed in civilian clothing exploded a bomb at the policy academy in Sana’a.

Doctor Abdulwali Al-Marhabi, dean of the police academy, said nine died and nineteen were injured. According to him, the suspect “was hospitalized, yet he died in the hospital.”

Al-Marhabi said the blast occurred using an explosive belt. He said it is possible that the explosive was remote-operated.

Investigations to determine the exact cause are ongoing.

Yahiya Al-Barawei, the gate guard at the police academy, said that prior to the blast, there was a car loitering near the college gate.

“Some individuals were in the vehicle,” Al-Barawei said. “And then, a man came to ask when the students would leave the college compound. I told him I didn’t know.”

Al-Barawei said, “When the students came out of the college, it was 12 p.m. Out of the blue, there was a resounding explosion. I didn’t know what happened later.”

Tael Al-Riashi, an officer at the academy, said he saw the bomber before the bomber was taken to the hospital via taxi.

“He sustained injuries in his legs and hands while he was still alive,” Al-Riashi said.

Al-Riashi didn’t know what hospital the suicide bomber was taken to.

According to Al-Riashi, shrapnel from the blast resembled ball bearings used in the May 21 Al-Sabeen suicide bombing, which occurred during a military parade. Nearly 100 people died in that explosion.

Residents and ambulances rushed to the scene, taking the wounded to various hospitals in Sana’a, including Al-Thwara and the Police Hospital.

Security forces, along with tens of riot police, deployed in the area, closed the main street that leads to the Police College. Armored vehicles were present on the scene, and residents were cleared from the area by force.

Rezq Al-Jawfi, Sana’a’s security chief, and other military leaders were at the bombing location in the immediate aftermath.

What appeared to be ball bearings from the explosion were present on the police academy door in addition to small pools of blood on the ground.

Several injured students were taken to the Police Hospital, near the Central Security building.

Waleed Zamam, a student, died at the Police Hospital. Moreover, Hamza Al-Mashrahi, Akram Farea’ and Mohammed Mahdi Al-Soraihi were injured. Blood were seen on Al-Soraihi’s face and his left ear.

Abdulkareem Al-Khawlani, a doctor in Al-Thawra Hospital, said there were six injured and one dead at his hospital.

On Tuesday, the Yemeni Ministry of Interior increased security measures, including guard forces, at foreign embassies, diplomats’ houses, vital facilities and oil companies in anticipation of suspected attacks, according to the ministry.