The Spanish Ministry of the Interior confirmed that Prime Minister Pedro Sánchez’s office received a letter containing an explosive device on November 24, “similar” to the letters that arrived on Wednesday at the Ukrainian embassy and the Spanish arms manufacturer, as well as at the air base on Thursday.
The ministry added that security measures would be stepped up around public and diplomatic buildings across the country following a series of falsified letters.
Spanish police are investigating a suspicious letter bomb sent to an airbase near Madrid early Thursday morning, a day after the letter bomb exploded at the Ukrainian embassy, injuring a staff member, the interior and defense ministries said.
Government officials said another bomb package was found Wednesday night at a weapons factory that makes grenade launchers that Spain sent to Ukraine in the northern Spanish city of Zaragoza, and police detonated it in a controlled manner.
The Spanish Ministry of Defense announced that additional security forces have been deployed to the Torrejon de Ardoz base, east of Madrid.
The embassy bombing occurred on Wednesday when an employee opened a letter addressed to the ambassador.
For his part, the Minister of Foreign Affairs of Ukraine Dmytro Kuleba urgently ordered to strengthen the security of all Ukrainian embassies. He also asked his Spanish counterpart to take urgent action to investigate the attack.