The Egyptian Company for Metro Management and Operation closed Cairo's Sadat metro station on Tuesday morning.

Company CEO Khaled Sabra said in a statement Monday night that the station would be closed for an indefinite period of time due to security reasons, according to Ahram Online .

Although other details about the closure were not made clear, it is speculated that the decision was taken to maintain security and safety after Monday's attack on Egypt's top prosecutor general. The decision came less than two weeks after the metro station was opened on June 17 following a nearly two-year closure.

After the station was closed in 2013 for security measures, its reopening on the eve of Ramadan was met with joy and relief from Cairo's 3.5 million daily metro passengers. The station, which lies under Cairo's Tahrir Square and is one of the largest in the city, is considered a vital lifeline for the crowded city's metro passengers.

The significance of the station to Cairo's metro transportation system stems from the fact that it is one of only two metro stations in Cairo where passengers can change lines, the other being Al-Shohada metro station beneath Ramses Square.

The station's two-year closure put all the pressure on Al-Shohada, which quickly became the most overcrowded metro station in the capital. It also added extra money and time to the passengers' daily commute.

Transport Minister Hani Dahi had said that the long-awaited reopening was timed to alleviate the increased traffic congestion known to accompany Ramadan in Cairo.

"I am so happy [with the reopening] that I wanted to go kiss the walls of the station," 20-year-old university student Omneya told Ahram Online in mid-June, just like thousands of other passengers who were elated at the station's reopening but now face another indefinite closure.

More than 200 Palestinians from the West Bank and Gaza will be moving to Qatar after Ramadan to work as teachers within the emirate.

Qatar faces a shortage of teachers and plans to hire some 1,500 teachers from throughout Arab world. The new Palestinian teachers benefit from a deal struck in late 2013 between Qatar and Palestinian Prime Minister Rami Hamdallah allowing some 20,000 Palestinians living in the occupied territories to apply for working visas.

Previously, individuals who only held Palestinian identification documents, and not passports, were unable to apply to work in Qatar. It is not always possible for Palestinians to obtain passports within the occupied territories and these passports are not always recognized by foreign governments.

Although the new deal began in January of last year, it remains unclear how many of the 20,000 visas have actually been issued. The Palestinian ambassador to Qatar, Munir Ghannam, did however tell Doha News that Palestinians had come to the embassy and explained that they have come through the new deal.

Unemployment in the occupied territories hovers around 25 percent and thus Qatar now serves as a great option for Palestinian residents seeking employment abroad.

Ghannam explained, "The door is open for Palestinians to come to Qatar, according to the needs of the labor market. Unemployment in Palestine is very high. The Palestinians need work where they can find it."

Like other GCC countries, Qatar restricts the number of foreign hires from a particular country with a quota system. Ghannam told Doha News that when he assumed his position as ambassador 10 years ago, the quota for Palestinians was zero. Thus 20,000 serves as a rather dramatic increase.

However, the agreement only covers employment visas and does not necessarily allow for Palestinians who obtain jobs in the emirate to also bring their families.