Militants from the al-Shabab group have attacked a hotel near the presidential palace in Somalia's capital Mogadishu, security sources and witnesses say.
The Islamist group has attacked the Syl Hotel before, which is popular with government officials.
Witnesses reported blasts and gunfire coming from the hotel, telling Reuters news agency fighters were inside.
Media affiliated with the group say four Somali MPs were wounded. The government has not commented.
Al-Shabab said earlier that fighters were in control of the hotel and were shooting "workers and officers of the… government".
Resident Farah Ali, who lives near the president's office, told Reuters: "We first heard a huge blast, and then gunfire followed. We understand the fighters are inside [the hotel] for we hear exchange of gunfire."
"Several gunmen forced their way into the building after destroying the perimeter wall with a heavy explosion," a security officer told AFP.
Hassan Nur, who escaped by scaling a wall, said: "I don't know about the casualties but there were many people inside when the attack started."
Other witnesses reported seeing police arriving within minutes of the attack, which triggered a gun battle with militants.
The Calamada website, which is linked to al-Shabab, said at least four lawmakers and a government spokesperson had been injured in the attack.
Attacks had reduced in recent weeks amid heightened security after the government intensified its military offensive against the Islamist group.
Al-Shabab controls large parts of southern and central Somalia.
The group is affiliated to al-Qaeda and has waged a brutal insurgency for nearly 20 years against the UN-backed government in Somalia.
Somalia President Hassan Sheikh Mohamud on Thursday met defence officials to plan how to reclaim lost territory, Somalia's national news agency Sonna reported.
