ANKARA, Turkey — Four more people have been detained in connection with two car bomb attacks that killed dozens in a Turkish town near the Syrian border, bringing the number of suspects in custody to 13, Turkey’s prime minister said Tuesday.
Syria again rejected Turkey’s contention it was involved, condemning the attacks and offering to conduct a joint investigation of an attack it has blamed on Turkey.
Police were still searching for six other wanted suspects, Interior Minister Muammer Guler said. Turkish authorities have blamed the attack on a Marxist group with alleged links to the Syrian intelligence agency, but have not named the group.
Prime Minister Recep Tayyip Erdogan of Turkey said the death toll on Tuesday stood at 51 people, including five Syrians.
Saturday’s powerful bombings were the deadliest in Turkey in years, shattering the border town of Reyhanli, a main hub for Syrian refugees and rebels fighting against the regime of President Bashar Assad of Syria.
In Washington, the White House condemned the bombings.