Egypt's police shot dead Sunday "an armed pro-Muslim Brotherhood protester" in the coastal governorate of Alexandria, on the fourth anniversary of the 25 January 2011 uprising.
The deceased, according to an interior ministry statement, was shooting randomly with a automatic rifle at people while marching with a number of pro-Muslim Brotherhood supporters in Alexandria's Al-Awayed district.
The police arrested another man with an automatic rifle, also in the march, along with two men who had Molotov cocktails, the statement added.
The interior ministry posted a picture of the deceased on its official Facebook page, along with a firearm by his side.
Police also dispersed a number of small protests across Egypt.
This is the second pro-Muslim Brotherhood supporter to die in clashes this week.
On Friday, 17-year-old Sondos Reda Abo Bakr was shot dead with birdshot, in clashes between police and protesters.
Egypt has stepped up security on the anniversary of the uprising, in face of possible protests.
On Saturday, Shaimaa El-Sabagh, 33, one of several dozen protesters at a march organised by the Socialist Popular Alliance Party to commemorate martyrs of the uprising, was shot dead with birdshot near Talaat Harb Square in downtown Cairo on Saturday.
Police, who dispersed the march, denied gunning down El-Sabagh.
The pro-Mohamed Morsi National Alliance to Support Legitimacy (NASL), issued a statement Saturday night saying that they will stage protests on Sunday.
The outlawed Muslim Brotherhood, from which Morsi hails, is one of the members of NASL.
Egypt called off official celebrations of the anniversary of the January uprising this year, which is a national holiday and also the Police Day, as it mourns the death of Saudi Arabia's King Abdullah who died Friday.