Cairo, Nov 20 (IANS): At least one person was killed and over 50 people were injured across Egypt Tuesday as protestors marked the second anniversary of the deadly clashes that took place in 2011 on Mohamed Mahmoud Street near the iconic Tahrir square.

One man was killed when he was struck on his head during the clashes between the supporters and the opponents of the army from one side and the protestors and the police from the other side in Tahrir, Ahmed el-Ansari, head of ambulance authority, told Xinhua.

He added that 51 people were wounded in the clashes.

In November 2011, around 47 people were killed in confrontations between police and protestors opposing the Supreme Council of the Armed Forces, which was running a transitional government after the ouster of then president Hosni Mubarak.

Three people were killed during the commemoration of the first anniversary in 2012.

The security forces Tuesday fired teargas shells to disperse the pro-army protestors in the square and a march coming from Mohamed Mahmoud Street.

Hundreds of Egyptians took to the streets Tuesday, with some of them opposing the police practices against peaceful protestors during 2011 Mohamed Mahmoud Street events, and others showing support for the military which toppled Islamist president Mohamed Morsi in July.

Some protestors expressed anger over the government's move to inaugurate a symbolic foundation stone at a memorial for slain protestors in the square in the 2011 upheaval.