Mombasa–Nairobi Standard Gauge Railway common standard allows for seamless integration between the railways of NCIP countries. In the 2000s, Kenya's colonial-era metre-gauge railways deteriorated from lack of maintenance. By 2016, passenger trains were taking an entire day to travel from Nairobi to Mombasa, compared to 12 hours during the early 1990s. Freight transported from the Port of Mombasa fell from 4.8 million tonnes per year in the 1980s to 1.5 million tonnes per year in 2012. In 2014, the Rift Valley Railways Consortium, the operator of railways in Kenya and Uganda, reported a loss of US$1.5 million. At the same time, the Chinese government
Mombasa was renamed as Mvita (in Swahili) or Manbasa (Arabic). Portugal attacked the city again in 1528. In 1585 a joint military expedition between the Somalis of Ajuran Empire and the Turks of Ottoman Empire led by Emir 'Ali Bey successfully liberated Mombasa and other coastal cities in Southeast Africa from the Portuguese colonizers. The Portuguese landlords; only Malindi remained loyal to Portugal. The Zimba overcame the towns of Sena and Tete on the Zambezi, and in 1587 they took Kilwa, killing 3,000 people. At Mombasa the Zimba slaughtered the Muslim inhabitants, but they were halted at Malindi by the Bantu-speaking